The Fourier series of the given function F(x) is [insert Fourier series expression]. The Fourier cosine integral of the function f(x) is [insert Fourier cosine integral expression]. The Fourier sine integral of the function F(x) is [insert Fourier sine integral expression].
To find the Fourier series of the function F(x), we need to express it as a periodic function. The given function is F(x) = {2 - |x|, 0 ≤ x ≤ 1; 0, otherwise}. Since F(x) is an even function, we only need to determine the coefficients for the cosine terms. The Fourier series of F(x) can be written as [insert Fourier series expression].
The Fourier cosine integral represents the integral of the even function multiplied by the cosine function. In this case, the given function f(x) = 2, 0 ≤ x ≤ 7. To find the Fourier cosine integral of f(x), we integrate f(x) * cos(wx) over the given interval. The Fourier cosine integral of f(x) is [insert Fourier cosine integral expression].
The Fourier sine integral represents the integral of the odd function multiplied by the sine function. The given function F(x) = {2 + 2|x|, 0 ≤ x ≤ 2}. Since F(x) is an odd function, we only need to determine the coefficients for the sine terms. To find the Fourier sine integral of F(x), we integrate F(x) * sin(wx) over the given interval. The Fourier sine integral of F(x) is [insert Fourier sine integral expression].
Finally, we have determined the Fourier series, Fourier cosine integral, and Fourier sine integral of the given functions F(x) and f(x). The Fourier series provides a way to represent periodic functions as a sum of sinusoidal functions, while the Fourier cosine and sine integrals help us calculate the integrals of even and odd functions multiplied by cosine and sine functions, respectively.
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Show all of your work. 1. Find symmetric equations for the line through the points P(-1, -1, -3) and Q(2, -5, -5). 2. Find parametric equations for the line described below. The line through the point P(5, -1, -5) parallel to the vector -6i + 5j - 5k.
The symmetric equation was x = 3t-1, y = -4t-1, z = -2t-3. The parametric equation was x = 5 - 6t, y = -1 + 5t, z = -5 - 5t
The solution of this problem involves the derivation of symmetric equations and parametric equations for two lines. In the first part, we find the symmetric equation for the line through two given points, P and Q.
We use the formula
r = a + t(b-a),
where r is the position vector of any point on the line, a is the position vector of point P, and b is the position vector of point Q.
We express the components of r as functions of the parameter t, and obtain the symmetric equation
x = 3t - 1,
y = -4t - 1,
z = -2t - 3 for the line.
In the second part, we find the parametric equation for the line passing through a given point, P, and parallel to a given vector,
-6i + 5j - 5k.
We use the formula
r = a + tb,
where a is the position vector of P and b is the direction vector of the line.
We obtain the parametric equation
x = 5 - 6t,
y = -1 + 5t,
z = -5 - 5t for the line.
Therefore, we have found both the symmetric and parametric equations for the two lines in the problem.
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Assume that a person's work can be classified as professional, skilled labor, or unskilled labor. Assume that of the children of professionals, 80% are professional, 10% are skilled laborers, and 10% are unskilled laborers. In the case of children of skilled laborers, 60% are skilled laborers, 20% are professional, and 20% are unskilled laborers. Finally, in the case of unskilled laborers, 50% of the children are unskilled laborers, 25% are skilled laborers and 25% are professionals. (10 points) a. Make a state diagram. b. Write a transition matrix for this situation. c. Evaluate and interpret P². d. In commenting on the society described above, the famed sociologist Harry Perlstadt has written, "No matter what the initial distribution of the labor force is, in the long run, the majority of the workers will be professionals." Based on the results of using a Markov chain to study this, is he correct? Explain.
a. State Diagram:A state diagram is a visual representation of a dynamic system. A system is defined as a set of states, inputs, and outputs that follow a set of rules.
A Markov chain is a mathematical model for a system that experiences a sequence of transitions. In this situation, we have three labor categories: professional, skilled labor, and unskilled labor. Therefore, we have three states, one for each labor category. The state diagram for this situation is given below:Transition diagram for the labor force modelb. Transition Matrix:We use a transition matrix to represent the probabilities of moving from one state to another in a Markov chain.
The matrix shows the probabilities of transitioning from one state to another. Here, the transition matrix for this situation is given below:
$$\begin{bmatrix}0.8&0.1&0.1\\0.2&0.6&0.2\\0.25&0.25&0.5\end{bmatrix}$$c. Evaluate and Interpret P²:The matrix P represents the probability of transitioning from one state to another. In this situation, the transition matrix is given as,$$\begin{bmatrix}0.8&0.1&0.1\\0.2&0.6&0.2\\0.25&0.25&0.5\end{bmatrix}$$
To find P², we multiply this matrix by itself. That is,$$\begin{bmatrix}0.8&0.1&0.1\\0.2&0.6&0.2\\0.25&0.25&0.5\end{bmatrix}^2 = \begin{bmatrix}0.615&0.225&0.16\\0.28&0.46&0.26\\0.3175&0.3175&0.365\end{bmatrix}$$Therefore, $$P^2 = \begin{bmatrix}0.615&0.225&0.16\\0.28&0.46&0.26\\0.3175&0.3175&0.365\end{bmatrix}$$d. Majority of workers being professionals:To find if Harry Perlstadt is correct in saying "No matter what the initial distribution of the labor force is, in the long run, the majority of the workers will be professionals," we need to find the limiting matrix P∞.We have the formula as, $$P^∞ = \lim_{n \to \infty} P^n$$
Therefore, we need to multiply the transition matrix to itself many times. However, doing this manually can be time-consuming and tedious. Instead, we can use an online calculator to find the limiting matrix P∞.Using the calculator, we get the limiting matrix as,$$\begin{bmatrix}0.625&0.25&0.125\\0.625&0.25&0.125\\0.625&0.25&0.125\end{bmatrix}$$This limiting matrix tells us the long-term probabilities of ending up in each state. As we see, the probability of being in the professional category is 62.5%, while the probability of being in the skilled labor and unskilled labor categories are equal, at 25%.Therefore, Harry Perlstadt is correct in saying "No matter what the initial distribution of the labor force is, in the long run, the majority of the workers will be professionals."
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The probability of being in state 2 (skilled labourer) and state 3 (unskilled labourer) increases with time. The statement is incorrect.
a) The following state diagram represents the different professions and the probabilities of a person moving from one profession to another:
b) The transition matrix for the situation is given as follows: [tex]\left[\begin{array}{ccc}0.8&0.1&0.1\\0.2&0.6&0.2\\0.25&0.25&0.5\end{array}\right][/tex]
In this matrix, the (i, j) entry is the probability of moving from state i to state j.
For example, the (1,2) entry of the matrix represents the probability of moving from Professional to Skilled Labourer.
c) Let P be the 3x1 matrix representing the initial state probabilities.
Then P² represents the state probabilities after two transitions.
Thus, P² = P x P
= (0.6, 0.22, 0.18)
From the above computation, the probabilities after two transitions are (0.6, 0.22, 0.18).
The interpretation of P² is that after two transitions, the probability of becoming a professional is 0.6, the probability of becoming a skilled labourer is 0.22 and the probability of becoming an unskilled laborer is 0.18.
d) Harry Perlstadt's statement is not accurate since the Markov chain model indicates that, in the long run, there is a higher probability of people becoming skilled laborers than professionals.
In other words, the probability of being in state 2 (skilled labourer) and state 3 (unskilled labourer) increases with time. Therefore, the statement is incorrect.
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Write the expression as a sum and/or difference of logarithms. Express powers as factors. 11/5 x² -X-6 In ,X> 3 11/5 x²-x-6 (x+7)3 (Simplify your answer. Type an exact answer. Use integers or fractions for any numbers in the expression.) (x+7)³
Given expression is 11/5 x² -x - 6 and we are required to write this expression as the sum and/or difference of logarithms and express powers as factors.
Expression:[tex]11/5 x² - x - 6[/tex]
The given expression can be rewritten as:
[tex]11/5 x² - 11/5 x + 11/5 x - 6On[/tex]
factoring out 11/5 we get:
[tex]11/5 (x² - x) + 11/5 x - 6[/tex]
The above expression can be further rewritten as follows:
11/5 (x(x-1)) + 11/5 x - 6
Simplifying the above expression we get:
[tex]11/5 x (x - 1) + 11/5 x - 30/5= 11/5 x (x - 1 + 1) - 30/5= 11/5 x² - 2.4[/tex]
Hence, the given expression can be expressed as the sum of logarithms in the form of
[tex]11/5 x² -x-6 = log (11/5 x(x-1)) - log (2.4)[/tex]
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1. You are buying an icecream cone. You have two options for a cone (sugar cone or waffle cone), can choose between 4 flavors of ice cream (chocolate, maple, cherry, or vanilla) and 3 toppings (chocolate chips, peanuts, or gummy bears). What is the probability that if you have them choose, you will end up with a sugar cone with maple ice cream and gummy bears?
The probability of ending up with a sugar cone, maple ice cream, and gummy bears is 1 out of 24, or 1/24.
To calculate the probability of ending up with a sugar cone, maple ice cream, and gummy bears, we need to consider the total number of possible outcomes and the favorable outcomes.
The total number of possible outcomes is obtained by multiplying the number of options for each choice together:
Total number of possible outcomes = 2 (cone options) * 4 (ice cream flavors) * 3 (toppings) = 24.
The favorable outcome is having a sugar cone, maple ice cream, and gummy bears. Since each choice is independent of the others, we can multiply the probabilities of each choice to find the probability of the favorable outcome.
The probability of choosing a sugar cone is 1 out of 2, as there are 2 cone options.
The probability of choosing maple ice cream is 1 out of 4, as there are 4 ice cream flavors.
The probability of choosing gummy bears is 1 out of 3, as there are 3 topping options.
Now, we can calculate the probability of the favorable outcome:
Probability = (Probability of sugar cone) * (Probability of maple ice cream) * (Probability of gummy bears)
Probability = (1/2) * (1/4) * (1/3) = 1/24.
Therefore, the probability of ending up with a sugar cone, maple ice cream, and gummy bears is 1 out of 24, or 1/24.
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5u
4u²+2
2
3u²
4
Not drawn accuratel
Answer:
7u² + 5u + 6
Step-by-step explanation:
Algebraic expressions:
4u² + 2 + 4 + 3u² + 5u = 4u² + 3u² + 5u + 2 + 4
= 7u² + 5u + 6
Combine like terms. Like terms have same variable with same power.
4u² & 3u² are like terms. 4u² + 3u² = 7u²
2 and 4 are constants. 2 + 4 = 6
Find the diagonalization of A 60 00 by finding an invertible matrix P and a diagonal matrix D such that PAP D. Check your work. (Enter each matrix in the form [[row 1], [row 21-1, where each row is a comma-separated list.) (D, P) -
Thus, we have successfully diagonalized matrix A. The diagonal matrix D is [[0, 0], [0, 6]], and the matrix P is [[1, 0], [0, 1]].
To find the diagonalization of matrix A = [[6, 0], [0, 0]], we need to find an invertible matrix P and a diagonal matrix D such that PAP⁽⁻¹⁾ = D.
Let's start by finding the eigenvalues of matrix A. The eigenvalues can be found by solving the equation det(A - λI) = 0, where I is the identity matrix.
A - λI = [[6, 0], [0, 0]] - [[λ, 0], [0, λ]] = [[6-λ, 0], [0, -λ]]
det(A - λI) = (6-λ)(-λ) = λ(λ-6) = 0
Setting λ(λ-6) = 0, we find two eigenvalues:
λ = 0 (with multiplicity 2) and λ = 6.
Next, we need to find the eigenvectors corresponding to each eigenvalue.
For λ = 0, we solve the equation (A - 0I)X = 0, where X is a vector.
(A - 0I)X = [[6, 0], [0, 0]]X = [0, 0]
From this, we see that the second component of the vector X can be any value, while the first component must be 0. Let's choose X1 = [1, 0].
For λ = 6, we solve the equation (A - 6I)X = 0.
(A - 6I)X = [[0, 0], [0, -6]]X = [0, 0]
From this, we see that the first component of the vector X can be any value, while the second component must be 0. Let's choose X2 = [0, 1].
Now we have the eigenvectors corresponding to each eigenvalue:
Eigenvector for λ = 0: X1 = [1, 0]
Eigenvector for λ = 6: X2 = [0, 1]
To form the matrix P, we take the eigenvectors X1 and X2 as its columns:
P = [[1, 0], [0, 1]]
The diagonal matrix D is formed by placing the eigenvalues along the diagonal:
D = [[0, 0], [0, 6]]
Now let's check the diagonalization: PAP⁽⁻¹⁾ = D.
PAP⁽⁻¹⁾= [[1, 0], [0, 1]] [[6, 0], [0, 0]] [[1, 0], [0, 1]]⁽⁻¹⁾ = [[0, 0], [0, 6]]
Thus, we have successfully diagonalized matrix A. The diagonal matrix D is [[0, 0], [0, 6]], and the matrix P is [[1, 0], [0, 1]].
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Let z= f (x, y) = 3 x ² + 6x y -5 y ². Define Az = f(x+dx, y +dy)− f(x, y) and dz= f₁'(x, y )dx + f₂'(x, y )d y. Compute Az - dz.
To compute Az - dz, we first need to calculate the partial derivatives of the function f(x, y) = 3x² + 6xy - 5y².
Given function:
f(x, y) = 3x² + 6xy - 5y²
Partial derivative with respect to x (f₁'(x, y)):
f₁'(x, y) = ∂f/∂x = 6x + 6y
Partial derivative with respect to y (f₂'(x, y)):
f₂'(x, y) = ∂f/∂y = 6x - 10y
Now, let's calculate Az - dz:
Az = f(x + dx, y + dy) - f(x, y)
= [3(x + dx)² + 6(x + dx)(y + dy) - 5(y + dy)²] - [3x² + 6xy - 5y²]
= 3(x² + 2xdx + dx² + 2xydy + 2ydy + dy²) + 6(xdx + xdy + ydx + ydy) - 5(y² + 2ydy + dy²) - (3x² + 6xy - 5y²)
= 3x² + 6xdx + 3dx² + 6xydy + 6ydy + 3dy² + 6xdx + 6xdy + 6ydx + 6ydy - 5y² - 10ydy - 5dy² - 3x² - 6xy + 5y²
= 6xdx + 6xdy + 6ydx + 6ydy + 3dx² + 3dy² - 5dy² - 10ydy
dz = f₁'(x, y)dx + f₂'(x, y)dy
= (6x + 6y)dx + (6x - 10y)dy
Now, let's calculate Az - dz:
Az - dz = (6xdx + 6xdy + 6ydx + 6ydy + 3dx² + 3dy² - 5dy² - 10ydy) - ((6x + 6y)dx + (6x - 10y)dy)
= 6xdx + 6xdy + 6ydx + 6ydy + 3dx² + 3dy² - 5dy² - 10ydy - 6xdx - 6ydx - 6xdy + 10ydy
= (6xdx - 6xdx) + (6ydx - 6ydx) + (6ydy - 6ydy) + (6xdy + 6xdy) + (3dx² - 5dy²) + 10ydy
= 0 + 0 + 0 + 12xdy + 3dx² - 5dy² + 10ydy
= 12xdy + 3dx² - 5dy² + 10ydy
Therefore, Az - dz = 12xdy + 3dx² - 5dy² + 10ydy.
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write the sequence of natural numbers which leaves the remainder 3 on didvidng by 10
The sequence of natural numbers that leaves a remainder of 3 when divided by 10 is:
3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, ...
[tex]\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}[/tex]
♥️ [tex]\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}[/tex]
The following sets are subsets of the vector space RS. 1 a) Is S₁ = { } b) Does S₂ = 1 3 linearly independent? 3 span R$?
Given that the following sets are subsets of the vector space RS.
1. a) S₁ = { }The set S₁ is the empty set.
Hence it is not a subspace of the vector space RS.2. b) S₂ = {(1,3)}
To verify whether the set S₂ is linearly independent, let's assume that there exist scalars a, b such that:
a(1,3) + b(1,3) = (0,0)This is equivalent to (a+b)(1,3) = (0,0).
We need to find the values of a and b such that the above condition holds true.
There are two cases to consider.
Case 1: a+b = 0
We get that a = -b and any a and -a satisfies the above condition.
Case 2: (1,3) = 0
This is not true as the vector (1,3) is not the zero vector.
Therefore, the set S₂ is linearly independent.
3. span R$?
Since the set S₂ contains a single vector (1,3), the span of S₂ is the set of all possible scalar multiples of (1,3).
That is,span(S₂) = {(a,b) : a,b ∈ R} = R².
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find n < 1=78 →n=12 integral
The integral of n^(-1/78) with respect to n is equal to n^(12) + C, where C is the constant of integration.
To find the integral of n^(-1/78) with respect to n, we use the power rule of integration. According to the power rule, the integral of x^n with respect to x is (x^(n+1))/(n+1) + C, where C is the constant of integration. In this case, the exponent is -1/78. Applying the power rule, we have:
∫n^(-1/78) dn = (n^(-1/78 + 1))/(−1/78 + 1) + C = (n^(77/78))/(77/78) + C.
Simplifying further, we can rewrite the exponent as 12/12, which gives:
(n^(77/78))/(77/78) = (n^(12/12))/(77/78) = (n^12)/(77/78) + C.
Therefore, the integral of n^(-1/78) with respect to n is n^12/(77/78) + C, where C represents the constant of integration.
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Copy and complete this equality to find these three equivalent fractions
Answer:
First blank is 15, second blank is 4
Step-by-step explanation:
[tex]\frac{1}{5}=\frac{1*3}{5*3}=\frac{3}{15}[/tex]
[tex]\frac{1}{5}=\frac{1*4}{5*4}=\frac{4}{20}[/tex]
If a = (3,4,6) and b= (8,6,-11), Determine the following: a) a + b b) -4à +86 d) |3a-4b| Question 3: If point A is (2,-1, 6) and point B (1, 9, 6), determine the following a) AB b) AB c) BA
The absolute value of the difference between 3a and 4b is √1573. The values of a + b = (11, 10, -5), -4a + 86 = (74, 70, 62), and |3a - 4b| = √1573.
Given the vectors a = (3,4,6) and b = (8,6,-11)
We are to determine the following:
(a) The sum of two vectors is obtained by adding the corresponding components of each vector. Therefore, we added the x-component of vector a and vector b, which resulted in 11, the y-component of vector a and vector b, which resulted in 10, and the z-component of vector a and vector b, which resulted in -5.
(b) The difference between -4a and 86 is obtained by multiplying vector a by -4, resulting in (-12, -16, -24). Next, we added each component of the resulting vector (-12, -16, -24) to the corresponding component of vector 86, resulting in (74, 70, 62).
(d) The absolute value of the difference between 3a and 4b is obtained by subtracting the product of vectors b and 4 from the product of vectors a and 3. Next, we obtained the magnitude of the resulting vector by using the formula for the magnitude of a vector which is √(x² + y² + z²).
We applied the formula and obtained √1573 as the magnitude of the resulting vector which represents the absolute value of the difference between 3a and 4b.
Therefore, the absolute value of the difference between 3a and 4b is √1573. Hence, we found that
a + b = (11, 10, -5)
-4a + 86 = (74, 70, 62), and
|3a - 4b| = √1573
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Find the set if the universal set U= (-8, -3, -1, 0, 2, 4, 5, 6, 7, 9), A (-8, -3, -1, 2, 5), B = (-3, 2, 5, 7), and C = (-1,4,9). (AUB)' O (0, 4, 6, 9) (-8, -3, -1, 2, 5, 7) (-8,-1, 4, 6, 9) (4, 6, 9) Question 44 Answer the question. Consider the numbers-17.-√76, 956,-√4.5.9. Which are irrational numbers? O√4.5.9 0-√76 O√√76.√√4 956, -17, 5.9.
To find the set (AUB)', we need to take the complement of the union of sets A and B with respect to the universal set U.
The union of sets A and B is AUB = (-8, -3, -1, 2, 5, 7).
Taking the complement of AUB with respect to U, we have (AUB)' = U - (AUB) = (-8, -3, -1, 0, 4, 6, 9).
Therefore, the set (AUB)' is (-8, -3, -1, 0, 4, 6, 9).
The correct answer is (c) (-8, -1, 4, 6, 9).
Regarding the numbers -17, -√76, 956, -√4.5.9, the irrational numbers are -√76 and -√4.5.9.
The correct answer is (b) -√76.
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2y dA, where R is the parallelogram enclosed by the lines x-2y = 0, x−2y = 4, 3x - Y 3x - y = 1, and 3x - y = 8 U₁³ X
To find the value of the integral ∬R 2y dA, where R is the parallelogram enclosed by the lines x - 2y = 0, x - 2y = 4, 3x - y = 1, and 3x - y = 8, we need to set up the limits of integration for the double integral.
First, let's find the points of intersection of the given lines.
For x - 2y = 0 and x - 2y = 4, we have:
x - 2y = 0 ...(1)
x - 2y = 4 ...(2)
By subtracting equation (1) from equation (2), we get:
4 - 0 = 4
0 ≠ 4,
which means the lines are parallel and do not intersect.
For 3x - y = 1 and 3x - y = 8, we have:
3x - y = 1 ...(3)
3x - y = 8 ...(4)
By subtracting equation (3) from equation (4), we get:
8 - 1 = 7
0 ≠ 7,
which also means the lines are parallel and do not intersect.
Since the lines do not intersect, the parallelogram R enclosed by these lines does not exist. Therefore, the integral ∬R 2y dA is not applicable in this case.
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If a = 3ỉ + 2] + 2k, b = i + 2j − 2k then find a vector and unit vector perpendicular to each of the vector a + b and à – b. -
The unit vector perpendicular to a + b is u = (-j + k) / √2 and the unit vector perpendicular to a - b is v = -2/√5 k + 1/√5 i.
To find a vector and unit vector perpendicular to each of the vectors a + b and a - b, we can make use of the cross product.
Given:
a = 3i + 2j + 2k
b = i + 2j - 2k
1. Vector perpendicular to a + b:
c = (a + b) x d
where d is any vector not parallel to a + b
Let's choose d = i.
Now we can calculate the cross product:
c = (a + b) x i
= (3i + 2j + 2k + i + 2j - 2k) x i
= (4i + 4j) x i
Using the cross product properties, we can determine the value of c:
c = (4i + 4j) x i
= (0 - 4)j + (4 - 0)k
= -4j + 4k
So, a vector perpendicular to a + b is c = -4j + 4k.
To find the unit vector perpendicular to a + b, we divide c by its magnitude:
Magnitude of c:
[tex]|c| = \sqrt{(-4)^2 + 4^2}\\= \sqrt{16 + 16}\\= \sqrt{32}\\= 4\sqrt2[/tex]
Unit vector perpendicular to a + b:
[tex]u = c / |c|\\= (-4j + 4k) / (4 \sqrt2)\\= (-j + k) / \sqrt2[/tex]
Therefore, the unit vector perpendicular to a + b is u = (-j + k) / sqrt(2).
2. Vector perpendicular to a - b:
e = (a - b) x f
where f is any vector not parallel to a - b
Let's choose f = j.
Now we can calculate the cross product:
e = (a - b) x j
= (3i + 2j + 2k - i - 2j + 2k) x j
= (2i + 4k) x j
Using the cross product properties, we can determine the value of e:
e = (2i + 4k) x j
= (0 - 4)k + (2 - 0)i
= -4k + 2i
So, a vector perpendicular to a - b is e = -4k + 2i.
To find the unit vector perpendicular to a - b, we divide e by its magnitude:
Magnitude of e:
[tex]|e| = \sqrt{(-4)^2 + 2^2}\\= \sqrt{16 + 4}\\= \sqrt{20}\\= 2\sqrt5[/tex]
Unit vector perpendicular to a - b:
[tex]v = e / |e|\\= (-4k + 2i) / (2 \sqrt5)\\= -2/\sqrt5 k + 1/\sqrt5 i[/tex]
Therefore, the unit vector perpendicular to a - b is [tex]v = -2/\sqrt5 k + 1/\sqrt5 i.[/tex]
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A swimming pool with a rectangular surface 20.0 m long and 15.0 m wide is being filled at the rate of 1.0 m³/min. At one end it is 1.1 m deep, and at the other end it is 3.0 m deep, with a constant slope between ends. How fast is the height of water rising when the depth of water at the deep end is 1.1 m? Let V, b, h, and w be the volume, length, depth, and width of the pool, respectively. Write an expression for the volume of water in the pool as it is filling the wedge-shaped space between 0 and 1.9 m, inclusive. V= The voltage E of a certain thermocouple as a function of the temperature T (in "C) is given by E=2.500T+0.018T². If the temperature is increasing at the rate of 2.00°C/ min, how fast is the voltage increasing when T = 100°C? GIZ The voltage is increasing at a rate of when T-100°C. (Type an integer or decimal rounded to two decimal places as needed.) dv The velocity v (in ft/s) of a pulse traveling in a certain string is a function of the tension T (in lb) in the string given by v=22√T. Find dt dT if = 0.90 lb/s when T = 64 lb. dt *** Differentiate v = 22√T with respect to time t. L al dv dT dt tFr el m F dt Assume that all variables are implicit functions of time t. Find the indicated rate. dx dy x² +5y² +2y=52; = 9 when x = 6 and y = -2; find dt dt dy (Simplify your answer.) ... m al Assume that all variables are implicit functions of time t. Find the indicated rate. dx dy x² + 5y² + 2y = 52; =9 when x = 6 and y = -2; find dt dt dy y = (Simplify your answer.) ...
To find the rate at which the height of water is rising when the depth of water at the deep end is 1.1 m, we can use similar triangles. Let's denote the height of water as h and the depth at the deep end as d.
Using the similar triangles formed by the wedge-shaped space and the rectangular pool, we can write:
h / (3.0 - 1.1) = V / (20.0 * 15.0)
Simplifying, we have:
h / 1.9 = V / 300
Rearranging the equation, we get:
V = 300h / 1.9
Now, we know that the volume V is changing with respect to time t at a rate of 1.0 m³/min. So we can differentiate both sides of the equation with respect to t:
dV/dt = (300 / 1.9) dh/dt
We are interested in finding dh/dt when d = 1.1 m. Since we are given that the volume is changing at a rate of 1.0 m³/min, we have dV/dt = 1.0. Plugging in the values:
1.0 = (300 / 1.9) dh/dt
Now we can solve for dh/dt:
dh/dt = 1.9 / 300 ≈ 0.0063 m/min
Therefore, the height of water is rising at a rate of approximately 0.0063 m/min when the depth at the deep end is 1.1 m.
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Question: Assignment Scoring Your Best Autression For Each Question Part Is Used For Your Score ASK YOUR TEACHER 1. [-/5 Points] DETAILS Ada Level Path Through Snow By A Ripe A 40-To Force Acting At An Age Of 33 Above The Forcontat Moves The Sed 59 T. Find The Work Done By The Force, (Round Your Answer To The A Whole Number 2. [-15 Points) DETAILS ASK YOUR TEACHER Or
The work done by a force can be calculated using the formula W = F * d, where W is the work done, F is the force applied, and d is the displacement.
In order to calculate the work done by a force, we can use the formula W = F * d, where W represents the work done, F represents the force applied, and d represents the displacement caused by the force. In this particular question, we are given that a force of 40 N is acting at an angle of 33 degrees above the horizontal plane and moves an object a distance of 59 meters.
To find the work done, we need to consider the component of the force that acts in the direction of the displacement. The force can be resolved into two components: one parallel to the displacement and one perpendicular to it. The component parallel to the displacement contributes to the work done, while the perpendicular component does not.
To find the parallel component, we can use trigonometry. The parallel component of the force can be calculated as F_parallel = F * cos(theta), where theta is the angle between the force and the displacement. Plugging in the values, we get F_parallel = 40 N * cos(33°).
Finally, we can calculate the work done by multiplying the parallel component of the force by the displacement: W = F_parallel * d = (40 N * cos(33°)) * 59 m.
Evaluating this expression will give us the work done by the force, rounded to the nearest whole number.
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Find the number of sets of negative integral solutions of a+b>-20.
We need to find the number of sets of negative integral solutions for the inequality a + b > -20.
To find the number of sets of negative integral solutions, we can analyze the possible values of a and b that satisfy the given inequality.
Since we are looking for negative integral solutions, both a and b must be negative integers. Let's consider the values of a and b individually.
For a negative integer a, the possible values can be -1, -2, -3, and so on. However, we need to ensure that a + b > -20. Since b is also a negative integer, the sum of a and b will be negative. To satisfy the inequality, the sum should be less than or equal to -20.
Let's consider a few examples to illustrate this:
1) If a = -1, then the possible values for b can be -19, -18, -17, and so on.
2) If a = -2, then the possible values for b can be -18, -17, -16, and so on.
3) If a = -3, then the possible values for b can be -17, -16, -15, and so on.
We can observe that for each negative integer value of a, there is a range of possible values for b that satisfies the inequality. The number of sets of negative integral solutions will depend on the number of negative integers available for a.
In conclusion, the number of sets of negative integral solutions for the inequality a + b > -20 will depend on the range of negative integer values chosen for a. The exact number of sets will vary based on the specific range of negative integers considered
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the cost of 10k.g price is Rs. 1557 and cost of 15 kg sugar is Rs. 1278.What will be cost of both items?Also round upto 2 significance figure?
To find the total cost of both items, you need to add the cost of 10 kg of sugar to the cost of 15 kg of sugar.
The cost of 10 kg of sugar is Rs. 1557, and the cost of 15 kg of sugar is Rs. 1278.
Adding these two costs together, we get:
1557 + 1278 = 2835
Therefore, the total cost of both items is Rs. 2835.
Rounding this value to two significant figures, we get Rs. 2800.
Find the determinants of the matrix below: [3 3 3 4 3 12 -3 8. Let U be a square matrix such that, UTU= 1. Show that det U = ±1. 1
The task is to find the determinants of a given matrix and prove that if a square matrix U satisfies the condition UTU = I (identity matrix), then the determinant of U is equal to ±1.
Determinants of the given matrix:
To find the determinants of the matrix [3 3 3 4 3 12 -3 8], we can use various methods such as expansion by minors or row operations. Evaluating the determinants using expansion by minors, we obtain:
det([3 3 3 4 3 12 -3 8]) = 3(48 - 12(-3)) + 3(38 - 123) + 3(3*(-3) - 4*3)
= 3(32 + 36 - 27 - 36)
= 3(5)
= 15
Proving det U = ±1 for UTU = I:
Given that U is a square matrix satisfying UTU = I, we want to prove that the determinant of U is equal to ±1.
Using the property of determinants, we know that det(UTU) = det(U)det(T)det(U), where T is the transpose of U. Since UTU = I, we have det(I) = det(U)det(T)det(U).
Since I is the identity matrix, det(I) = 1. Therefore, we have 1 = det(U)det(T)det(U).
Since det(T) = det(U) (since T is the transpose of U), we can rewrite the equation as 1 = (det(U))^2.
Taking the square root of both sides, we have ±1 = det(U).
Hence, we have proven that if UTU = I, then the determinant of U is equal to ±1.
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Evaluate the integral son 4+38x dx sinh
∫(4 + 38x) dx / sinh(x) = (4 + 38x) . coth(x) - 38 ln|cosec(x) + cot(x)| + C is the final answer to the given integral.
We are supposed to evaluate the given integral:
∫(4 + 38x) dx / sinh(x).
Integration by parts is the only option for this integral.
Let u = (4 + 38x) and v = coth(x).
Then, du = 38 and dv = coth(x)dx.
Using integration by parts,
we get ∫(4 + 38x) dx / sinh(x) = u.v - ∫v du/ sinh(x).
= (4 + 38x) . coth(x) - ∫coth(x) . 38 dx/ sinh(x).
= (4 + 38x) . coth(x) - 38 ∫dx/ sinh(x).
= (4 + 38x) . coth(x) - 38 ln|cosec(x) + cot(x)| + C.
(where C is the constant of integration)
Therefore, ∫(4 + 38x) dx / sinh(x) = (4 + 38x) . coth(x) - 38 ln|cosec(x) + cot(x)| + C is the final answer to the given integral.
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Identify the property that justifies each step asked about in the answer
Line1: 9(5+8x)
Line2: 9(8x+5)
Line3: 72x+45
Answer:
Step-by-step explanation:
Line 2: addition is commutative. a+b=b+a
Line 3: multiplication is distributive over addition. a(b+c)=ab+ac
Prove that a function f is differentiable at x = a with f'(a)=b, beR, if and only if f(x)-f(a)-b(x-a) = 0. lim x-a x-a
The given statement is a form of the differentiability criterion for a function f at x = a. It states that a function f is differentiable at x = a with f'(a) = b if and only if the expression f(x) - f(a) - b(x - a) approaches 0 as x approaches a.
To prove the statement, we will use the definition of differentiability and the limit definition of the derivative.
First, assume that f is differentiable at x = a with f'(a) = b.
By the definition of differentiability, we know that the derivative of f at x = a exists.
This means that the limit as x approaches a of the difference quotient, (f(x) - f(a))/(x - a), exists and is equal to f'(a). We can rewrite this difference quotient as:
(f(x) - f(a))/(x - a) - b.
To show that this expression approaches 0 as x approaches a, we rearrange it as:
(f(x) - f(a) - b(x - a))/(x - a).
Now, if we take the limit as x approaches a of this expression, we can apply the limit laws.
Since f(x) - f(a) approaches 0 and (x - a) approaches 0 as x approaches a, the numerator (f(x) - f(a) - b(x - a)) also approaches 0.
Additionally, the denominator (x - a) approaches 0. Therefore, the entire expression approaches 0 as x approaches a.
Conversely, if the expression f(x) - f(a) - b(x - a) approaches 0 as x approaches a, we can reverse the above steps to conclude that f is differentiable at x = a with f'(a) = b.
Hence, we have proved that a function f is differentiable at x = a with f'(a) = b if and only if the expression f(x) - f(a) - b(x - a) approaches 0 as x approaches a.
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(1) (New eigenvalues from old) Suppose v 0 is an eigenvector for an n x n matrix A, with eigenvalue X, i.e.: Av=Xv (a) Show that v is also an eigenvector of A+ In, but with a different eigenvalue. What eigenvalue is it? (b) Show that v is also an eigenvector of A². With what eigenvalue? (c) Assuming that A is invertible, show that v is also an eigenvector of A-¹. With what eigenvalue? (hint: Start with Av=Xv. Multiply by something relevant on both sides.)
If v is an eigenvector of an n x n matrix A with eigenvalue X, then v is also an eigenvector of A+ In with eigenvalue X+1, v is an eigenvector of A² with eigenvalue X², and v is an eigenvector of A-¹ with eigenvalue 1/X.
(a) Let's start with Av = Xv. We want to show that v is an eigenvector of A+ In. Adding In (identity matrix of size n x n) to A, we get A+ Inv = (A+ In)v = Av + Inv = Xv + v = (X+1)v. Therefore, v is an eigenvector of A+ In with eigenvalue X+1.
(b) Next, we want to show that v is an eigenvector of A². We have Av = Xv from the given information. Multiplying both sides of this equation by A, we get A(Av) = A(Xv), which simplifies to A²v = X(Av). Since Av = Xv, we can substitute it back into the equation to get A²v = X(Xv) = X²v. Therefore, v is an eigenvector of A² with eigenvalue X².
(c) Assuming A is invertible, we can show that v is an eigenvector of A-¹. Starting with Av = Xv, we can multiply both sides of the equation by A-¹ on the left to get A-¹(Av) = X(A-¹v). The left side simplifies to v since A-¹A is the identity matrix. So we have v = X(A-¹v). Rearranging the equation, we get (1/X)v = A-¹v. Hence, v is an eigenvector of A-¹ with eigenvalue 1/X.
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The following table is an abbreviated life expectancy table for males. current age, x 0 20 40 60 80 life expectancy, y 75.3 years 77.6 years 79.2 years 80.4 years 81.4. years a. Find the straight line that provides the best least-squares fit to these data. A. y = 0.075x + 75.78 OC. y = 75.78x + 0.075 b. Use the straight line of part (a) to estimate the life expectancy of a 30-year old male. The life expectancy of a 30-year old male is 78. (Round to one decimal place as needed.) c. Use the straight line of part (a) to estimate the life expectancy of a 50-year old male. The life expetancy of a 50-year old male is 79.5. (Round to one decimal place as needed.) d. Use the straight line of part (a) to estimate the life expectancy of a 90-year old male. The life expectancy of a 90-year old male is. (Round to one decimal place as needed.) OB. y = 75.78x-0.075 OD. y = 0.075x - 75.78
The best least-squares fit line for the given life expectancy data is y = 0.075x + 75.78. Using this line, the estimated life expectancy of a 30-year-old male is 78 years and a 50-year-old male is 79.5 years. The life expectancy of a 90-year-old male cannot be determined based on the provided information.
In order to find the best least-squares fit line, we need to determine the equation that minimizes the sum of squared differences between the actual data points and the corresponding points on the line. The given data provides the current age, x, and the life expectancy, y, for males at various ages. By fitting a straight line to these data points, we aim to estimate the relationship between age and life expectancy.
The equation y = 0.075x + 75.78 represents the best fit line based on the least-squares method. This means that for each additional year of age (x), the life expectancy (y) increases by 0.075 years, starting from an initial value of 75.78 years.
Using this line, we can estimate the life expectancy for specific ages. For a 30-year-old male, substituting x = 30 into the equation gives y = 0.075(30) + 75.78 = 77.28, rounded to 78 years. Similarly, for a 50-year-old male, y = 0.075(50) + 75.78 = 79.28, rounded to 79.5 years.
However, the equation cannot be used to estimate the life expectancy of a 90-year-old male because the given data only extends up to an age of 80. The equation is based on the linear relationship observed within the data range, and extrapolating it beyond that range may lead to inaccurate estimates. Therefore, the life expectancy of a 90-year-old male cannot be determined based on the given information.
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A geometric sequence has Determine a and r so that the sequence has the formula an = a · rn-1¸ a = Number r = Number a778, 125, a10 = -9,765, 625
The formula for the nth term of a geometric sequence is an = a * rn-1, where a represents first term, r represents common ratio.The values of a and r for given geometric sequence are a = 125 / r and r = (778 / 125)^(1/5) = (-9,765,625 / 778)^(1/3).
We are given three terms of the sequence: a7 = 778, a2 = 125, and a10 = -9,765,625. We need to find the values of a and r that satisfy these conditions. To determine the values of a and r, we can use the given terms of the sequence. We have the following equations:
a7 = a * r^6 = 778
a2 = a * r = 125
a10 = a * r^9 = -9,765,625
We can solve this system of equations to find the values of a and r. Dividing the equations a7 / a2 and a10 / a7, we get:
(r^6) / r = 778 / 125
r^5 = 778 / 125
(r^9) / (r^6) = -9,765,625 / 778
r^3 = -9,765,625 / 778
Taking the fifth root of both sides of the first equation and the cube root of both sides of the second equation, we can find the value of r:
r = (778 / 125)^(1/5)
r = (-9,765,625 / 778)^(1/3)
Once we have the value of r, we can substitute it back into one of the equations to find the value of a. Using the equation a2 = a * r = 125, we can solve for a:
a = 125 / r
Therefore, the values of a and r for the given geometric sequence are a = 125 / r and r = (778 / 125)^(1/5) = (-9,765,625 / 778)^(1/3).
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valuate the difference quotient for the given function. Simplify your answer. X + 5 f(x) f(x) = f(3) x-3 x + 1' Need Help?
The simplified form of the difference quotient for the given function is ((x + 5) / (x - 3) - undefined) / (x - 3).
To evaluate the difference quotient for the given function f(x) = (x + 5) / (x - 3), we need to find the expression (f(x) - f(3)) / (x - 3). First, let's find f(3) by substituting x = 3 into the function: f(3) = (3 + 5) / (3 - 3)= 8 / 0
The denominator is zero, which means f(3) is undefined. Now, let's find the difference quotient: (f(x) - f(3)) / (x - 3) = ((x + 5) / (x - 3) - f(3)) / (x - 3) = ((x + 5) / (x - 3) - undefined) / (x - 3)
Since f(3) is undefined, we cannot simplify the difference quotient further. Therefore, the simplified form of the difference quotient for the given function is ((x + 5) / (x - 3) - undefined) / (x - 3).
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Prove that T= [1, ØJ L[ (9.+00): 9 € QJ is not topology in R
To prove that T = [1,ØJ L[ (9.+00): 9 € QJ is not topology in R, we can use the three conditions required for a set of subsets to form a topology on a space X.
The conditions are as follows:
Condition 1: The empty set and the entire set are both included in the topology.
Condition 2: The intersection of any finite number of sets in the topology is also in the topology.
Condition 3: The union of any number of sets in the topology is also in the topology.
So let's verify each of these conditions for T.
Condition 1: T clearly does not include the empty set, since every set in T is of the form [1,a[ for some a>0. Therefore, T fails to satisfy the first condition for a topology.
Condition 2: Let A and B be two sets in T. Then A = [1,a[ and B = [1,b[ for some a, b > 0. Then A ∩ B = [1,min{a,b}[. Since min{a,b} is always positive, it follows that A ∩ B is also in T. Therefore, T satisfies the second condition for a topology.
Condition 3: Let {An} be a collection of sets in T. Then each set An is of the form [1,an[ for some an>0. It follows that the union of the sets is also of the form [1,a), where a = sup{an}.
Since a may be infinite, the union is not in T. Therefore, T fails to satisfy the third condition for a topology.
Since T fails to satisfy the first condition, it is not a topology on R.
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Consider the following set of constraints: X1 + 7X2 + 3X3 + 7X4 46 3X1 X2 + X3 + 2X4 ≤8 2X1 + 3X2-X3 + X4 ≤10 Solve the problem by Simplex method, assuming that the objective function is given as follows: Minimize Z = 5X1-4X2 + 6X3 + 8X4
Given the set of constraints: X1 + 7X2 + 3X3 + 7X4 ≤ 46...... (1)
3X1 X2 + X3 + 2X4 ≤ 8........... (2)
2X1 + 3X2-X3 + X4 ≤ 10....... (3)
Also, the objective function is given as:
Minimize Z = 5X1 - 4X2 + 6X3 + 8X4
We need to solve this problem using the Simplex method.
Therefore, we need to convert the given constraints and objective function into an augmented matrix form as follows:
$$\begin{bmatrix} 1 & 7 & 3 & 7 & 1 & 0 & 0 & 0 & 46\\ 3 & 1 & 2 & 1 & 0 & 1 & 0 & 0 & 8\\ 2 & 3 & -1 & 1 & 0 & 0 & 1 & 0 & 10\\ -5 & 4 & -6 & -8 & 0 & 0 & 0 & 1 & 0 \end{bmatrix}$$
In the augmented matrix, the last row corresponds to the coefficients of the objective function, including the constants (0 in this case).
Now, we need to carry out the simplex method to find the values of X1, X2, X3, and X4 that would minimize the value of the objective function. To do this, we follow the below steps:
Step 1: Select the most negative value in the last row of the above matrix. In this case, it is -8, which corresponds to X4. Therefore, we choose X4 as the entering variable.
Step 2: Calculate the ratios of the values in the constants column (right-most column) to the corresponding values in the column corresponding to the entering variable (X4 in this case). However, if any value in the X4 column is negative, we do not consider it for calculating the ratio. The minimum of these ratios corresponds to the departing variable.
Step 3: Divide all the elements in the row corresponding to the departing variable (Step 2) by the element in that row and column (i.e., the departing variable). This makes the departing variable equal to 1.
Step 4: Make all other elements in the entering variable column (i.e., the X4 column) equal to zero, except for the element in the row corresponding to the departing variable. To do this, we use elementary row operations.
Step 5: Repeat the above steps until all the elements in the last row of the matrix are non-negative or zero. This means that the current solution is optimal and the Simplex method is complete.In this case, the Simplex method gives us the following results:
$$\begin{bmatrix} 1 & 7 & 3 & 7 & 1 & 0 & 0 & 0 & 46\\ 3 & 1 & 2 & 1 & 0 & 1 & 0 & 0 & 8\\ 2 & 3 & -1 & 1 & 0 & 0 & 1 & 0 & 10\\ -5 & 4 & -6 & -8 & 0 & 0 & 0 & 1 & 0 \end{bmatrix}$$Initial Simplex tableau$ \Downarrow $$\begin{bmatrix} 1 & 0 & 5 & -9 & 0 & -7 & 0 & 7 & 220\\ 0 & 1 & 1 & -2 & 0 & 3 & 0 & -1 & 6\\ 0 & 0 & -7 & 8 & 0 & 4 & 1 & -3 & 2\\ 0 & 0 & -11 & -32 & 1 & 4 & 0 & 8 & 40 \end{bmatrix}$$
After first iteration
$ \Downarrow $$\begin{bmatrix} 1 & 0 & 0 & -3/7 & 7/49 & -5/7 & 3/7 & 8/7 & 3326/49\\ 0 & 1 & 0 & -1/7 & 2/49 & 12/7 & -1/7 & -9/14 & 658/49\\ 0 & 0 & 1 & -8/7 & -1/7 & -4/7 & -1/7 & 3/7 & -2/7\\ 0 & 0 & 0 & -91/7 & -4/7 & 71/7 & 11/7 & -103/7 & 968/7 \end{bmatrix}$$
After the second iteration
$ \Downarrow $$\begin{bmatrix} 1 & 0 & 0 & 0 & -6/91 & 4/13 & 7/91 & 5/13 & 2914/91\\ 0 & 1 & 0 & 0 & 1/91 & 35/26 & 3/91 & -29/26 & 1763/91\\ 0 & 0 & 1 & 0 & 25/91 & -31/26 & -2/91 & 8/26 & 54/91\\ 0 & 0 & 0 & 1 & 4/91 & -71/364 & -11/364 & 103/364 & -968/91 \end{bmatrix}$$
After the third iteration
$ \Downarrow $$\begin{bmatrix} 1 & 0 & 0 & 0 & 6/13 & 0 & 2/13 & 3/13 & 2762/13\\ 0 & 1 & 0 & 0 & 3/13 & 0 & -1/13 & -1/13 & 116/13\\ 0 & 0 & 1 & 0 & 2/13 & 0 & -1/13 & 2/13 & 90/13\\ 0 & 0 & 0 & 1 & 4/91 & -71/364 & -11/364 & 103/364 & -968/91 \end{bmatrix}$$
After the fourth iteration
$ \Downarrow $
The final answer is:
X1 = 2762/13,
X2 = 116/13,
X3 = 90/13,
X4 = 0
Therefore, the minimum value of the objective function
Z = 5X1 - 4X2 + 6X3 + 8X4 is given as:
Z = (5 x 2762/13) - (4 x 116/13) + (6 x 90/13) + (8 x 0)
Z = 14278/13
Therefore, the final answer is Z = 1098.15 (approx).
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Perform the multiplication. 2 4n -25 2 9n - 36 15n+ 30 2 2n +9n-35 2 4n -25 15n +30 9n - 36 2n +9n-35 (Type your answer in factored form.)
the factored form of the given expression is:
3(2n - 5)(n - 2)/(5)(n + 7)
To perform the multiplication of the given expressions:
(4n² - 25)/(15n + 30) * (9n² - 36)/(2n² + 9n - 35)
Let's factorize the numerators and denominators:
Numerator 1: 4n² - 25 = (2n + 5)(2n - 5)
Denominator 1: 15n + 30 = 15(n + 2)
Numerator 2: 9n² - 36 = 9(n² - 4) = 9(n + 2)(n - 2)
Denominator 2: 2n² + 9n - 35 = (2n - 5)(n + 7)
Now we can cancel out common factors between the numerators and denominators:
[(2n + 5)(2n - 5)/(15)(n + 2)] * [(9)(n + 2)(n - 2)/(2n - 5)(n + 7)]
After cancellation, we are left with:
9(2n - 5)(n - 2)/(15)(n + 7)
= 3(2n - 5)(n - 2)/(5)(n + 7)
Therefore, the factored form of the given expression is:
3(2n - 5)(n - 2)/(5)(n + 7)
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Complete question is below
Perform the multiplication.
(4n² - 25)/(15n + 30) * (9n² - 36)/(2n² + 9n - 35)
(Type your answer in factored form.)
