Answer:
Step-by-step explanation:
Which relation is a function?
Select all that apply.
Responses
{(2, 1), (2,3), (3, 4), (4,5)} {(2, 1), (2,3), (3, 4), (4,5)}
{(2, 1), (−2,1), (3, 2), (4,2)} {(2, 1), (−2,1), (3, 2), (4,2)}
{(−1, 2), (−2,2), (−3, 2), (−4,2)} {(−1, 2), (−2,2), (−3, 2), (−4,2)}
{(2, 1), (2,3), (−2, 5), (−2,7)} {(2, 1), (2,3), (−2, 5), (−2,7)}
{(2, 2), (3,3), (4, 4), (5,5)}
The relations which are functions as required to be identified in the task content are;
{(2, 1), (−2,1), (3, 2), (4,2)} {(−1, 2), (−2,2), (−3, 2), (−4,2)}{(2, 2), (3,3), (4, 4), (5,5)}Which relations are functions among the given answer choices?It follows from the task content that the relations which are functions among the given answer choices are to be identified.
Since the definition of a function is such that; a function is a special kind of relation in which case only one output value is assigned to each input values.
Put simply, a function has only one output value for each input value.
Therefore, it follows from the definition above that the relations which are functions among the given answer choices are as listed above.
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researchers examined the hyper-eating behavior known to occur with cannabis use and the effect of the opioid-blocker naloxone (nalo) on this behavior. they randomly assigned lab mice to 4 conditions (shown below) and measured the mice feeding response (in mg). is there evidence that the treatments affect the mean feeding response in mice? nalo cannabis nalo control cannabis 10 10 20 130 40 50 30 150 40 60 40 150 120 80 80 190 120 120 170 250 140 160 (you can copy/paste the data into crunchit from menu edit / paste spreadsheet.) state the appropriate null and alternative hypotheses run the appropriate test. the test p-value you obtain is a value between
Alpha one is equal to two is the null hypothesis and the alternate hypothesis says at least one pair is different.
Classification modes X is alpha + ц T and X is ц T + alpha
Therefore , P value is 01.0197
Therefore, This value is smaller than 0.0 , this is the decision rule.
The null hypothesis will be rejected at that point since there is enough data to say that the therapy had a meaningful impact.
The null hypothesis means that there will be no observed effect in our experiment. In a mathematical formulation of the null hypothesis, there will typically be an equal sign. This hypothesis is denoted by H0.
The alternate hypothesis means that there will be an observed effect for our experiment. In a mathematical formulation of the alternative hypothesis, there will typically be an inequality, or not equal to symbol. This hypothesis is denoted by either Ha or by H1.
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Alan saved $80 from his income in the month of march. In april, he decided to save 140% as much as he did in march. How much will he save in april?.
When he saved $80 in March, he saved $112 in April because he intended to save 140% more than he did.
What is percent?In essence, percentages are fractions with a 100 as the denominator. We place the percent sign (%) next to the number to indicate that the number is a percentage. Percentage, a relative number showing hundredth parts of any amount, is a relative measure that indicates how many questions on a test you correctly answered out of 100 (75/100). Since one percent (symbolized as 1%) is equal to one tenth of anything, 100 percent stands for everything, while 200 percent refers to double the amount specified. By dividing the total by the amount you wish to convert to a percentage. You would divide 2 by 5 in this case as 2 divided by 5 equals 0.4. The result of multiplying 0.4 by 100 is 40, or 40%.
Here,
Amount of money he saved in march=$80
Amount of money he wish to save in April,
=140%*80
=$112
He saved $112 in April when he saved $80 in March and he wanted to save 140% more than what he saved in March.
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Suppose that f is an exponential function with growth factor 2.4 and that f(0) = 3. Find f(3)
For the given exponential function, the value of f(3) would be f(3) = 41.472.
What is an exponential function?
The exponential function is a mathematical function that is represented by f(x)= e^x. Unless otherwise specified, the term refers to a positive-valued function of a real variable, though it can be extended to complex numbers or generalized to other mathematical objects such as matrices or Lie algebras.
The given function would be [tex]f(x)=ab^x[/tex].
The growth factor is b = 2.4
[tex]f(0) = ab^0\\\\a=3\\[/tex]
Now find f(3),
[tex]f(3)=3.(2.4)^x\\\\ f(3) = 3*(2.4)^3\\\\\f(3) = 41.472[/tex]
Hence, the value of f(3) would be f(3) = 41.472.
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A family used a professional decorator to help furnish their new home. The decorator selected $1,580 worth of furnishings. The family paid for the furnishings, plus 4.5% tax on the purchases. The decorator’s fee was 12% of the purchases, not including the tax.
Question 1
Part A
Write an equation in the form of y=kx, using x to represent the decorator’s fee. Then use the equation to calculate the amount of that fee.
Answer:
Step-by-step explanation:
Worth of furnishings = $1580
Tax rate = 4.5%
Tax = 4.5% × $1580 = 0.045 × $1580 = $71.10
Amount paid = $1580 + $71.10 = $1651.10
Since the decorator's fee was 12% of the purchases. This will then be calculated as:
y = kx
where,
y = decorators fee
k = percentage of decorators fee on purchases
x = amount paid
y = 12% × $1651.10
= 0.12 × $1651.10
= $198.132
If each 3 in. on the scale drawing below equals 5 yards, what is the actual area of the shape in square units?
A square is drawn with a side length of 3 inches.
The actual area of the square with a side length of 3 inches is 25 yd² if 3 in. equals 5 yard.
How to solve an equation?An equation is an expression that can be used to show the relationship between variables and numbers.
Given that 3 in. on the scale drawing below equals 5 yards.
A square is drawn with a side length of 3 inches. Hence:
Side length of square = 3 in = 5 yards.
Area of square = side length² = 5 yd * 5 yd = 25 yd²
The actual area is 25 yd²
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Without dividing explain whether the quotient of 9/10 ÷ 3 is greater than or less than the quotient of 9/10 ÷ 2.
Answer:
less than
Step-by-step explanation:
when you divide by a bigger number the smaller the quotient will be
Hopes this helps please mark brainliest
The total variance is $35,000. The total materials variance is $14,000. The total labor variance is twice the total overhead variance. What is the total overhead variance?.
The total overhead variance is $7,000
What is variance?
Data points' variance from the mean is a measure of how they vary. A variance, according to Layman, is a measurement of how widely apart a collection of data (numbers) are from their mean (average) value.
Finding the predicted difference of departure from the actual number is what is meant by variance. As a result, variance is influenced by the data set's standard deviation.
Data is more dispersed from its mean the higher the variance value, and less dispersed from mean if the variance value is low or minimal. As a result, it is referred to as a measure of data dispersion from mean.
Total labor and overhead variance = 35000-14000 = 21000
Total overhead variance = 21000/(2+1)*1 = 7000
Thus, total overhead variance is $7,000
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The perimeter of a parallelogram is 80 m. If the longer side is 10 m greater than the
shorter side, then find the length of each side
The dimension of the parallelogram is length = 25 m and width = 15 m.
What is a parallelogram?
A quadrilateral with two sets of parallel sides is referred to as a parallelogram. In a parallelogram, the opposing sides are of equal length, and the opposing angles are of equal size. Additionally, the interior angles that are additional to the transversal on the same side. 360 degrees is the sum of all interior angles.
The perimeter of a parallelogram is 2(length + breath).
Let the breath of the parallelogram be x.
Given that the length of the parallelogram is 10 m longer than width.
The length of the parallelogram is (x + 10)m
The perimeter of the parallelogram is 2(x+10 +x) = 2( 2x + 10)
According to the question,
2(2x + 10) =80
Divide both sides by 2
2x + 10 = 40
Subtract 10 from both sides:
2x = 30
Divide both sides by 2
x = 15
The length of the parallelogram is (10 + 15) m = 25m.
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After forming two right triangles, which right triangle theorem did you have to use twice to solve for side lengths that were not in the final equation? the tangent theorem the pythagorean theorem the right triangle theorem the cosine theorem.
Answer:
b
Step-by-step explanation:
no
Answer:
The answer is B. the Pythagorean theorem
Step-by-step explanation:
brainiest pls?
*16 (b)
(√3-1) cm
A
75°
B
You are given that sin 75º =
5√2 cm
√3+1
2√2
Show that the area of triangle ABC is 2½ cm²
Nof
acc
C
Answer:
Step-by-step explanation:
78 sin
(+0
The function D(p) gives the number of items that will be demanded when the price is p. The production cost C(x) is the cost of producing x items. To determine the cost of production when the price is $6, you would do which of the following?
a. Evaluate D(C(6)).
b. Evaluate C(D(6)).
c. Solve D(C(x)) = 6.
d. Solve C(D(p)) = 6.
To determine the cost of production when the price is $6 , we would evaluate C(D(6)) , the correct option is (b) .
In the question ,
it is given that ,
number of items demanded when the price is p = D(p) ,
the cost of producing x items is given as = C(x) ,
we have to evaluate when the cost of production is $6 ,
So , the number of items demanded when the price is $6 is D(6) ,
Now , to find the production cost ,we substitute D(6) in place of x ,
we get ,
= C(D(6)) .
Therefore , we will evaluate C(D(6)) to find the cost of production .
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Find the slope of the line that contains (−5, −3) and (8, −1).
Work Shown:
[tex](x_1,y_1) = (-5,-3) \text{ and } (x_2,y_2) = (8,-1)\\\\m = \text{slope} = \frac{\text{rise}}{\text{run}} = \frac{\text{change in y}}{\text{change in x}}\\\\m = \frac{\text{y}_{2} - \text{y}_{1}}{\text{x}_{2} - \text{x}_{1}}\\\\m = \frac{-1 - (-3)}{8 - (-5)}\\\\m = \frac{-1 + 3}{8 + 5}\\\\m = \boldsymbol{\frac{2}{13}}\\\\[/tex]
A slope of 2/13 means we go up 2 units and to the right 13 units. If starting at (-5,-3) and following this movement pattern of "up 2, right 13", then we arrive at (8,-1).
If Tamara travels 10 mi to a store after she leaves the park, what point on the graph represents the store
Answer:
The correct option is C
Step-by-step explanation:
find the derivatives of cos
Step by step solution is above
Michael swam 2,000 yards on each of eighteen days.
The scatterplot above shows his swim time for and
corresponding heart rate after each swim. The line of
best fit for the data is also shown. For the swim that
took 34 minutes, Michael's actual heart rate was
about how many beats per minutes less than the rate
predicted by the line of best fit?
A) 1
B) 2
C) 3
D) 4
Michael's actual heart rate was about 2 beats per minutes less than the rate predicted by the line of best fit. The correct option is B
What is a scatterplot?A scatterplot is a data visualization that depicts the relationship between two numerical variables. Each dataset member is plotted as a point whose x-y coordinates correspond to its values for the two variables.
On each of the eighteen days, Michael swam 2,000 yards. The scatterplot above depicts his swim time and heart rate after each swim. The data's best fit line is also shown.
From the graph the actual heart rate=150
but calculated heart rate from best fit line=148
Difference between actual and calculated=150−148=2
Option B is correct.
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please help!! easy question but cant seem to figure out
Viv and Ian were trying to describe parts of the expression 5(x+7)
Viv said, "The entire expression is the product of 3 factors."
Ian said, "On its own, (x+7) sum with 2 terms."
The expression 5(x + 7) has a sum of two terms 5x and 35.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, an expression 5(x + 7).
Now distributing 5 to x and 7 we get 5x + 35.
So, The expression 5(x + 7) has the sum of two terms.
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How do I prove that the square of an odd number is always one more than a multiple of 8?
The proper way that you can prove that the square of an odd number is always one more than a multiple of eight is by using an example.
What is an example?An example is a term that refers to a tool that is intended to explain, illustrate, or prove a general statement. When we want to explain a procedure we can give an example (that we have previously chosen) to seek to clarify the understanding of a phenomenon or process.
How to make an example for this case?To prove that the square of an odd number is always a multiple of eight, the first step is to find the square of any odd number. Subsequently, we must subtract 1 from the result. Finally we must divide the previous result by 8 and it must give us an exact number (not a decimal).
3 * 3 = 9
9 - 1 = 8
8 / 8 = 1
123 * 123 = 15,129
15,129 - 1 = 15,128
15,128 / 8 = 1,891
9 * 9 = 81
81 - 1 = 80
80 / 8 = 10
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I need help with 9 10 and 11
the notation is the same as that of exercise (1). . calculate the matrix representing, in the basis, the operator , the hamiltonian of the system. . calculate the eigenvalues and the eigenvectors of . . the system at time
Hamiltonian due to interaction of spin magnetic field:
H = -u.B
H = α/√2[tex]\left[\begin{array}{ccc}1&1\\1&-1\\\end{array}\right][/tex]
What is a matrix?
In mathematics, a matrix (multiple matrices) is a rectangular array or table of numbers, symbols, or expressions, arranged in rows and columns, and used to represent mathematical objects or properties of such objects. The
matrix represents a linear mapping without additional information and allows explicit computation in linear algebra. The study of matrices is therefore a large part of linear algebra, and most properties and operations in abstract linear algebra can be expressed in matrices. For example, matrix multiplication represents the construction of linear maps.
Not all matrices are related to linear algebra. This is especially true for graph theory, occurrence matrices, and adjacency matrices. This article focuses on matrices in the context of linear algebra. Unless otherwise stated, all matrices either represent linear maps or can be considered linear maps.
Square matrices (matrices with the same number of rows and columns) play an important role in matrix theory. Square matrices of a given dimension form non-commutative rings, one of the most common examples of non-commutative rings. The determinant of a square matrix is the numerical value associated with the matrix that underlies the study of square matrices. For example, a square matrix has nonzero determinant and is invertible only if the eigenvalues of the square matrix are the roots of the polynomial determinant.
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Tapiwa raked 5%, percent more leaves than Adam raked. Tapiwa raked 357 liters of leaves. How many liters of leaves did Adam rake?
HELP ASAP!
The number of liters of leaves that Adam rakes will be 340.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
Tapiwa raked 5%, percent more leaves than Adam raked. Tapiwa raked 357 liters of leaves.
Let the number of leaves that Adam raked be 'x' and the number of leaves that Tapiwa raked be 'y'. Then the equations are given as,
y = 1.05x ...1
y = 357 ...2
From equations 1 and 2, then we have
1.05x = 357
x = 357 / 1.05
x = 340
The number of liters of leaves that Adam rakes will be 340.
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Make x the subject of m=n+x/p
Answer:
x=mp-n
Step-by-step explanation:
Switch sides:
(n+x)/p=m
Then multiply both sides by p:
n+x=mp
Move n to the other side:
x=mp-n
evaluate the given integral by changing to polar coordinates. sin(x2 y2) da r , where r is the region in the first quadrant between the circles with center the origin and radii 1 and 3
Using polar coordinates, the result for integral is - 0.448[tex]\pi[/tex]
What is polar co-ordinates?
In arithmetic, the polar coordinate system may be a two-dimensional organization within which every purpose on a plane is set by a distance from a indicator and an angle from a reference direction.
Main body:
The most used relation for polar coordinates is:
[tex]x^{2} +y ^{2} =r^{2}[/tex]
An integral in Cartesian coordinates is converted to polar using:
[tex]\int\int{f(x,y)} \, dA = \int\int{ f(r, \beta )d\beta[/tex]
In this problem:
f(x,y) = sin [tex]x^{2} +y^{2}[/tex]
thus
f(r,[tex]\beta[/tex]) = sin[tex]r^{2}[/tex]
Region between the circles with center at the origin and radii 1 and 3, thus the inner limits of integration are r =1 and r =3.
First quadrant, thus, the outer limits of integration are: [tex]\beta[/tex] = 0,[tex]\beta[/tex] = [tex]\pi /2[/tex].
The polar integral is:
I = [tex]\int\limits^3_1 {sinr^{2} r} \, dr[/tex]
Using substitution:
u =[tex]r^{2}[/tex] ⇒ du = 2rdr⇒ dr = du /2
I = 1/2[tex]\int\ {sin u} \, du[/tex]
= -[tex]cos r^{2[/tex] /2 where limits are 3, 1
Applying the fundamental theorem of calculus:
I = [tex]-cos 5^{2} /2[/tex][tex]-cos1^{2}/2[/tex]
I = - 0.996
Then, the outer integral is:
O =[tex]\int\limits^\pi _0 {-0.996} \, d\beta[/tex]
O= - 0.448[tex]\pi[/tex]
Hence the result for integral is - 0.448[tex]\pi[/tex]
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Examine the table, which represents the number of guests visiting a museum during a period of time.
If the relationship between hours and guests is proportional, what is the value of h?
Enter your answer as a number, like this: 42
Answer:
7
Step-by-step explanation:
649-531=118
We know that there are 118 more guests per hour.
Divide 826 by 118 to get 7.
Answer: 7
Step-by-step explanation:
The first line of the table is 2 and 236 if you divide 236 by 2 you get 118
Then after that you times it by any number after 5.5 until you get 826.
For the 5-pointed star and the 8-pointed star, experiment with the Spider Tool to find a
second rotation that gives you the same figure. Make a conjecture about the relationship
between two rotations that make the same figure. Then see whether your conjecture works for a
12-pointed star. (4 points: 1 point each for the second rotations, 1 point for a valid conjecture, 1
point for testing the conjecture)
The spider tool makes a conjecture about the relationship i,e, each of rotation then 12 turns is 150°
If we number the points of the star 1–12, in order for the star to be symmetrical, each point must connect to two points symmetrically located around the center line.
That is, point 1 may connect to points {2, 12} or {3, 11} or {4, 10}, or {5, 9} or {6, 8} or {7, 7}. For each of these connections, the angle made at the point of the "star" is, respectively, 150°, 120°, 90°, 60°, 30° or 0°. For these angles, the figure obtained will be ...
150° - dodecagon, a 12-sided figure
120° - hexagon
90° - square
60° - equilateral triangle
30° - 12-pointed star
0° - straight line
We suspect the star you're interested in is the one with points that are 30°. In order to have that point angle, the spider must make a turn of 180° -30° = 150°.
The spider will make 12 turns of 150°, for a total of 1800°, for a total of 5 full turns of 360°.
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jasmine is 5 years younger than twice her sister age of jasmine sister 22 year old then how old is jasmine
Answer:
100000000000000000000000000
Step-by-step explanation:
Answer:
Step-by-step explanation:
i think the answer is 12
The graphs of functions f(x) and g(x) = f(x) + k are shown: Graph of line f of x going through ordered pairs 0, 1 and 2, 6. Graph of line g of x going through ordered pairs 0, negative 1 and 2, 4. What is the value of k? a k = 2 b k = −2 c k = 1 d k = −1
Based on the graphs of functions f(x) and g(x) = f(x) + k, the value of k is: B. k = -2.
What is y-intercept?In Mathematics, the y-intercept of any graph such as a linear function, generally occur at the point where the value of "x" is equal to zero (x = 0).
Since the graph of the line for function f(x) passes through the ordered pairs (0, 1) and (2, 6), its y-intercept is given by:
y = f(0) = 1.
Since the graph of the line for function g(x) passes through the ordered pairs (0, -1) and (2, 4), its y-intercept is given by:
y = g(0) = -1.
From the information provided above, we have the following function:
g(x) = f(x) + k
g(0) = f(0) + k
Making k the subject of formula, we have:
k = g(0) - f(0)
k = -1 - 1
k = -2.
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What is the domain of the function
f(x) = 2x + 3
when the range is {3, 5, 9}?
Answer:
Domain: {9, 13, 21}
Step-by-step explanation:
BRAINLIEST PLEASE!!!Answer:
(0,1,3)Step-by-step explanation:
f(x)=2x+3let y= f(x)y=2x+3interchanging x and y in the expression x=2y+3making y the subject in the equation y=(x-3)/2f(x)-¹=(x-3)/2when x= 3 =(3-3)/2 =0when x=5 =(5-3)/2 = 1when x= 9 =(9-3)/2 = 39. Find an integer number where the sum with its inverse is 26/5
Answer: 5 + 1/5 = 25/5 + 1/5 = 26/5.
Step-by-step explanation:
Let 'x' represent the integer the inverse number is '1/x'.
x + 1/x = 26/5
x1 = 5
5 + 1/5 = 25/5 + 1/5 = 26/5.
does someone mind helping me with this? Thank you!
Answer:
the answer is 8
Step-by-step explanation:
it's a directly proportional relationship
