Answer:
(2, -3)
Step-by-step explanation:
You must choose from the 3 ways to solve the system of equations:
1. Substitution
2. Elimination
3. Graphing (least recommended)
My example is going to be substitution, as folllows:
2x - y = 7
(Add y to both sides)
2x = y + 7
(Subtract 7 from both sides)
y = 2x - 7
Now, we are able to use substitution in the next equation with the other equation!
3x + 4y = -6
(Replace y with what y equals -- other equation)
3x + 4(2x -7) = -6
(Simplify the parantheses)
3x + 8x - 28 = -6
(Add 28 to both sides)
3x + 8x = -6 +28
3x + 8x = 22
(CLT - Combine like terms)
11x = 22
(Divide 11 from both sides)
x = 2
Now, we will find what y is by plugging x into the other equation.
y = 2x - 7
x = 2
y = 2(2) - 7
y = 4 - 7
y = -3
y = -3
x = 2
Since we found both of the variables' values, we found our coordinate pairs to solve this equation!
Answer: (2, -3)
Construct triangle PQR in which angle Q = 30 deg , angle R=60^ and PQ + QR + RP = 10cm
We can see here that in order to construct a triangle PQR in which angle Q = 30°, angle R=60° and PQ + QR + RP = 10cm, here is a guide:
Draw a line segment AB = 10 cm.Construct angle 30° at point A and angle 60° at point B.Draw angle bisectors to angles A and B.Make sure these angle bisectors intersect at point P.Draw perpendicular bisector to line segment AP.Let this bisector meet AB at Q.Then draw perpendicular bisector to line segment BP.Let this bisector meet AB at R.Join PQ and PR.PQR is the required triangle.What is a triangle?A triangle is a geometric shape that is defined as a three-sided polygon, where each side is a line segment connecting two of the vertices, or corners, of the triangle. The interior angles of a triangle always add up to 180 degrees.
Triangles can be classified into different types based on their side lengths and angles, such as equilateral triangles with three equal sides and three equal angles, isosceles triangles with two equal sides and two equal angles, and scalene triangles with no equal sides or angles.
Triangles are used in many areas of mathematics and science, including geometry, trigonometry, and physics.
Learn more about triangle on https://brainly.com/question/28470545
#SPJ1
The triangle shown has an area of 46 square centimeters. Find the measure of the base (segment AB ). Triangle A B C. A line goes from point C to point D on side A B. Side A C is 11 centimeters, C B is 9 centimeters, and A B is question mark.
By answering the presented question, we may conclude that Therefore, triangle the length of the base AB is approximately 20.88 centimeters.
What precisely is a triangle?A triangle is a closed, double-symmetrical shape composed of three line segments known as sides that intersect at three places known as vertices. Triangles are distinguished by their sides and angles. Triangles can be equilateral (all factions equal), isosceles, or scalene based on their sides. Triangles are classified as acute (all angles are fewer than 90 degrees), good (one angle is equal to 90 degrees), or orbicular (all angles are higher than 90 degrees) (all angles greater than 90 degrees). The region of a triangle can be calculated using the formula A = (1/2)bh, where an is the neighbourhood, b is the triangle's base, and h is the triangle's height.
the length of the base AB,
Area = (1/2) * base * height
[tex]CB^2 = CD^2 + BD^2\\9^2 = x^2 + (AB - x)^2\\81 = x^2 + (AB^2 - 2ABx + x^2)\\AB^2 - 2ABx + 2x^2 = 81\\[/tex]
We also know that the area of the triangle is:
[tex]46 = (1/2) * AB * CB\\46 = (1/2) * AB * \sqrt(x^2 + 81)\\Now we can solve for AB in terms of x:AB = (2 * 46) / \sqrt(x^2 + 81)\\AB = 92 / \sqrt(x^2 + 81)\\(92 / \sqrt(x^2 + 81))^2 - 2(92 / \sqrt(x^2 + 81))x + 2x^2 = 81\\[/tex]
[tex]8464 / (x^2 + 81) - (184x) /sqrt(x^2 + 81) + 2x^2 = 81\\8464 - 184x(x^2 + 81) + 2x^2(x^2 + 81) * sqrt(x^2 + 81) = 81(x^2 + 81)\\2x^4 - 181x^2 + 7743 = 0\\x^2 = (181 + \sqrt(181^2 - 427743)) / (2*2)\\x^2 = (181 + sqrt(129961)) / 4\\x^2 = (181 + 361) / 4\\x^2 = 90^2 / 4\\x = 45\sqrt(2) / 2\\[/tex]
[tex]AB = 92 / \sqrt(x^2 + 81)\\AB = 92 / \sqrt((45sqrt(2) / 2)^2 + 81)\\AB = 92 / \sqrt(4050)\\AB ≈ 20.88 cm\\[/tex]
Therefore, the length of the base AB is approximately 20.88 centimeters.
To know more about triangle visit:
https://brainly.com/question/2773823
#SPJ1
The mean time to admit an emergency patient to the Mount Nittany Medical Center is 5 minutes with a standard deviation of 3 minutes. Only trauma patients are admitted to this center. Also, assume that the admission process is in fact the radiography process via an X-Ray machine.
(a) What is the natural coefficient of variation for one patient?
C0 : ______________
(b) If the admission times of patients are independent, what will be the mean and variance of admitting a group of 50 emergency patients? What will be the coefficient of variation of a group of 50 emergency patients?
t0 : ______________ σ02 : ______________ C0 :______________
(c) The X-Ray machine in the center may fail at any time randomly. The time to failure is exponentially distributed with a mean of 80 hours and the repair time is also exponentially distributed with a mean of 4 hours. What will be the effective mean and coefficient of variation of the admission time for a group of 50 trauma patients?
te : ______________ σe 2 :____________ Ce :______________
(d) Determine the variability class of the squared-coefficients of variation in Parts a-c (e.g., low variability, moderate variability, or high variability.)
C0 2(Part a): ______________ C0 2(Part b): ______________ Ce 2(Part c): ______________
(e) In two sentences, describe how the manager of center can improve the inflated effective admission time in Part c?
(a) The natural coefficient of variation for one patient is the ratio of the standard deviation to the mean, expressed as a percentage:
C0 = (standard deviation / mean) x 100% = (3 / 5) x 100% = 60%.
(b) If the admission times of patients are independent, the mean and variance of admitting a group of 50 emergency patients can be calculated as follows:
mean = n x mean time = 50 x 5 = 250 minutes
variance = n x variance of individual patient / sample size = 50 x (3)^2 / 50 = 9
The coefficient of variation for a group of 50 emergency patients is the ratio of the standard deviation to the mean, expressed as a percentage:
C0 = (standard deviation / mean) x 100% = (3 / 5) x 100% = 60%.
(c) The effective mean and coefficient of variation of the admission time for a group of 50 trauma patients can be calculated using the following formula:
te = n x mean time / (1 - p1 x p2)
where p1 is the probability of machine failure and p2 is the probability of repair completion. Assuming the machine can fail at any time, p1 can be calculated as 1 / (mean time between failures / mean admission time) = 1 / (80 x 60 / 5) = 0.001042. Assuming the repair time is also exponentially distributed, p2 can be calculated as 1 / mean repair time = 1 / 4 = 0.25. Therefore, te = 50 x 5 / (1 - 0.001042 x 0.25) = 250.14 minutes. The variance of the admission time can be calculated using the formula:
σe^2 = n x variance of individual patient / (1 - p1 x p2)^2 = 50 x (3)^2 / (1 - 0.001042 x 0.25)^2 = 10.81. The coefficient of variation for a group of 50 trauma patients is the ratio of the standard deviation to the mean, expressed as a percentage:
Ce = (standard deviation / mean) x 100% = (sqrt(10.81) / 250.14) x 100% = 2.60%.
(d) The variability class of the squared coefficients of variation can be determined as follows:
C0² (Part a): (0.6)^2 = 0.36 (low variability)
C0² (Part b): (0.6)^2 = 0.36 (low variability)
Ce² (Part c): (0.026)^2 = 0.000676 (low variability)
(e) The manager of the center can improve the inflated effective admission time in Part c by implementing preventive maintenance measures to reduce the probability of machine failure, such as regular inspection and cleaning of the X-Ray machine, and by improving the repair process to reduce the mean repair time, such as hiring more skilled technicians or improving the repair procedures.
Find out more about the natural coefficient of variation
at brainly.com/question/30476966
#SPJ4
If F1 = 4y - 6, F2 = 9y + 3 and F3 = -y - 8, simplify F1 × F2 - F3 in terms of y.
Answer:
To simplify F1 × F2 - F3 in terms of y, we need to first find the product of F1 and F2, and then subtract F3.
F1 × F2 can be expanded using the distributive property:
F1 × F2 = (4y - 6) × (9y + 3) = 4y × 9y + 4y × 3 - 6 × 9y - 6 × 3
= 36y^2 + 12y - 54y - 18
= 36y^2 - 42y - 18
Now we can subtract F3 from the result:
F1 × F2 - F3 = (36y^2 - 42y - 18) - (-y - 8)
= 36y^2 - 42y - 18 + y + 8
= 36y^2 - 41y - 10
Therefore, F1 × F2 - F3 in terms of y is 36y^2 - 41y - 10.
(please mark my answer as brainliest)
Tell me which brand or which size is a better buy.
Answer:
The answer is brand B
Step-by-step explanation:
You divide $14.88 by 24 which equals 68 cents per item.
Then brand B is 60 cents per item which is the better buy!
Hello, is there any one to solve it please
Graph the function for the given domain, write the range. g(x) = 1/(x2+6)
Domain: {-6, -4, -2, 0, 2, 4, 6}
1/42,1/22,1/10,1/6 are domain of function .
What are a function's domain and range?
The set of all possible inputs and outputs is known as a function's domain, and the same is true for its range. Important features of a function are the domain and range.
The range contains all of the function's output values, while the domain contains all of the real numbers that can be used as input values.
g(x) = 1/(x²+6)
Domain: {-6, -4, -2, 0, 2, 4, 6}
G(-6) = 1/(-6² + 6) = 1/42
G(-4) = 1/(-4² + 6) = 1/22
G(-2) = 1/(-2² + 6) = 1/10
G(0) = 1/(0+6) = 1/6
G(2) = 1/(2² + 6) = 1/10
G(4) = 1/(4² + 6) = 1/22
G(6) = 1/(6² + 6) = 1/42
Learn more about domain and range
brainly.com/question/29452843
#SPJ1
Fred and George share some money. If Fred gets 3/11 of the money,in what ratio did they share it?
Answer:
Step-by-step explanation:
If they had $11: Fred gets $3, George gets $8.
So the ratio is: 3:8
Use Synthetic Division to find the quotient of the division between
x4-2x3+2x2-9x +10 and (x-2).
x^3 + 2x - 5
x^3 + x + 4
x^4 + 2x - 5
x^2 - 2x + 5
Using synthetic division for the given dividend and divisor the required quotient is given by option a. x^3 + 2x - 5.
Dividend is equal to,
x^4-2x^3+2x^2-9x +10
Divisor is equal to,
( x - 2 )
Using synthetic division we have,
Use double equals to method to simplify the dividend we have,
x^4-2x^3+2x^2-9x +10
= x^4 - 2x^3 + 2x^2 - 4x -5x + 10
= x^3 (x -2) + 2x ( x -2 ) - 5 ( x - 2 )
= ( x - 2 ) ( x^3 + 2x - 5 )
Now ,
Simplify by dividing it,
( x^4-2x^3+2x^2-9x +10 ) ÷ ( x - 2 )
= ( x - 2 ) ( x^3 + 2x - 5 ) ÷ ( x -2 )
= ( x^3 + 2x - 5 )
Therefore, the quotient of the synthetic division for the given dividend is equal to option a . ( x^3 + 2x - 5 ).
Learn more about synthetic division here
brainly.com/question/29139970
#SPJ4
P, Q, R, S, T and U are different digits.
PQR + STU = 407
Step-by-step explanation:
There are many possible solutions to this problem, but one possible set of values for P, Q, R, S, T, and U is:
P = 2
Q = 5
R = 1
S = 8
T = 9
U = 9
With these values, we have:
PQR = 251
STU = 156
And the sum of PQR and STU is indeed 407.
find two positive numbers that satisfy the given requirements. the sum of the first and twice the secind is 100 and the product is a maximum
Answer: The two positive numbers that satisfy the given requirements are 25 and 50.
Step-by-step explanation:
Let's call the two positive numbers x and y. We want to maximize their product while satisfying the condition that "the sum of the first and twice the second is 100", or mathematically:
x + 2y = 100
We can use algebra to solve for one of the variables in terms of the other:
x = 100 - 2y
Now we want to maximize the product xy:
xy = x(100 - 2y) = 100x - 2xy
Substituting x = 100 - 2y:
xy = (100 - 2y)y = 100y - 2y^2
To find the maximum value of this expression, we can take the derivative with respect to y and set it equal to zero:
d(xy)/dy = 100 - 4y = 0
Solving for y gives:
y = 25
Substituting y = 25 into the equation x + 2y = 100, we get:
x + 2(25) = 100
x = 50
Therefore, the two positive numbers that satisfy the given requirements are x = 50 and y = 25, and their product is:
xy = 50(25) = 1250
Use the given conditions to find the exact values of sin(2u), cos(2u), and tan(2u) using the double-angle formula.
In response to the stated question, we may state that Therefore, the trigonometry exact values of sin(u), cos(u), sin(2u), and cos(2u) are 4/5, 3/5, 24/25, and -7/25, respectively. The exact value of sin(t/2) is 2√5 / 5.
what is trigonometry?The study of the connection between triangle side lengths and angles is known as trigonometry. The concept first originated in the Hellenistic era, during the third century BC, due to the application of geometry in astronomical investigations. The subject of mathematics known as exact techniques deals with certain trigonometric functions and their possible applications in calculations. There are six commonly used trigonometric functions in trigonometry. Sine, cosine, tangent, cotangent, secant, and cosecant are their separate names and acronyms (csc). The study of triangle characteristics, particularly those of right triangles, is known as trigonometry. As a result, geometry is the study of the properties of all geometric forms.
Using the given triangle, we can find the values of sin(u), cos(u), and tan(u) as follows:
sin(u) = opposite / hypotenuse = 4 / 5
cos(u) = adjacent / hypotenuse = 3 / 5
tan(u) = opposite / adjacent = 4 / 3
To find the values of sin(2u) and cos(2u), we can use the double angle formulas:
[tex]sin(2u) = 2 sin(u) cos(u)\\cos(2u) = cos^2(u) - sin^2(u)\\sin(2u) = 2 (4/5) (3/5) = 24/25\\cos(2u) = (3/5)^2 - (4/5)^2 = -7/25[/tex]
sin(t/2) = ± [tex]\sqrt((1 - cos(t)) / 2)[/tex]
We need to determine the sign of the square root based on the quadrant in which t/2 lies. Since 7t/2 is in the second quadrant (between pi and 3pi/2), t/2 is in the second quadrant as well (between pi/2 and pi). In the second quadrant, sine is positive and cosine is negative. Therefore, we take the positive square root:
[tex]sin(t/2) = \sqrt((1 - cos(t)) / 2)\\= \sqrt((1 - (-3/5)) / 2)\\= \sqrt(8/10)\\= \sqrt(4/5)\\[/tex]
= 2/√5
= 2√5 / 5
Therefore, the exact values of sin(u), cos(u), sin(2u), and cos(2u) are 4/5, 3/5, 24/25, and -7/25, respectively. The exact value of sin(t/2) is 2√5 / 5.
To know more about trigonometry visit:
https://brainly.com/question/29002217
#SPJ1
Pls help There is a 20% chance that a customer walking into a store will make a purchase. A computer was used to generate 5 sets of random numbers from 0 to 9, where the numbers 0 and 1 represent a customer who walks in and makes a purchase.
A two column table with title Customer Purchases is shown. The first column is labeled Trial and the second column is labeled Numbers Generated.
What is the experimental probability that at least one of the first three customers that walks into the store will make a purchase?
A) 60%
B) 13%
C) 40%
D) 22%
The experimental probability that at least one of the first three customers that walks into the store will make a purchase is 60%.
What is experimental probability?It is determined by counting the number of times an event occurs in a given experiment and dividing the total number of trials by the number of successful outcomes.
The experimental probability that at least one of the first three customers that walks into the store will make a purchase is calculated by dividing the total number of customers who make a purchase by the total number of customers who enter the store.
In this case, there are 3 trials and 2 customers who make a purchase.
The experimental probability is 3 by 5 which is the total number of trials.
Thus, the experimental probability
=3/5
= 60%.
For more questions related to event
https://brainly.com/question/14350753
#SPJ1
Will tracks the high and low tempters in his town for five days during a cold spell in January his results are shown in the table below
Days when change in temperature more than 10° F are Option B)Tuesday and E) Friday.
Define change in temperaturecalculating the difference by deducting the end temperature from the initial temperature. The temperature difference is therefore 75 degrees Celsius - 50 degrees Celsius = 25 if something begins at 50 degrees Celsius and ends at 75 degrees Celsius.
Change in temperature on Monday from High to low
=15-10=5°F
Change in temperature on Tuesday from High to low
=8-(-4)=12°F
Change in temperature on Wednesday from High to low
=-2-(-5)=3°F
Change in temperature on Thursday from High to low
=-3-(-7)=4°F
Change in temperature on Friday from High to low
=-1-(-12)=11° F
Days when change in temperature more than 10° F are Tuesday and Friday.
To know more about Celsius, visit:
https://brainly.com/question/1373930
#SPJ1
The Complete question is attached below:
What percent of 28 is 77?
Answer:
36.3636364%
or 36.36
Step-by-step explanation:
Venell put together a model train with 25 train cars. Each train car is 80 millimeters long. How many meters long is Venell's model train if there are no gaps between cars? (1 meter = 1,000 millimeters)
Answer: 2 meters
Step-by-step explanation:
The length of one train car is 80 millimeters. Therefore, the length of the entire train is:
25 cars × 80 mm per car = 2000 mm
To convert millimeters to meters, we need to divide by 1000:
2000 mm ÷ 1000 = 2 meters
Therefore, Venell's model train is 2 meters long.
Help. I dont understand this math question and need help please and thank you.
Answer:
●B. The numbers -1,0,1 are zeros of multiplicity 1.
Step-by-step explanation:
So first, understand that when you are asked for roots, zeros, solutions, or x-intercepts...all of these, they are essentially asking for the same thing. Roots ARE solutions ARE zeros ARE x-intercepts. Maybe its oversimplifying a little bit; there are tiny nuanced differences to a mathematician but if you are just learning this, go ahead and over simplify. They are all the same. So you set it equal to 0 and solve.
Yes, literally, change y to a 0 and solve. See image.
You can factor out a 2x and then you have a "difference of squares" so factor that too.
see image.
"multiplicity" is a cool word. It just means how many times a number is the answer. It sort of doesn't even apply here. 0, -1, and 1 are the answer just one time each...so multiplicity 1. Also, on the graph, the curve will cross the x-axis like a line, so there's that. (See multiplicity 2 is cooler, because the curve will "bounce" at the x-intercept instead, but that's not happening here)
Anyway, set the problem equal to 0 and solve. Ta-da! You're done! Hope this helps! See image.
I will mark you brainiest!
If the triangles above are reflections of each other, then BC ≅ to:
A) DE.
B) ED.
C) EF.
D) DF.
E) AC.
Answer:
D
Step-by-step explanation:
If their reflections are congruent to each other then looking at the diagram we can see a reflection just like a mirror where its flipped on the other side of the dotted line. When flipping it and aligning one triangle to the other we find that BC is congruent to DF
What was your recommended intake of carbohydrates (grams), and how far were you from it? Show the mathActual Intake Recommended Intake Percentage159.00 115-166 100%
The actual intake of carbohydrates is 138% as compare to recommended intake.
Recommended intake of carbohydrates or any other nutrient are,
Based on the information provided,
Consumed 159 grams of carbohydrates,
Recommended intake is between 115 and 166 grams.
Calculate the percentage of actual intake compared to the recommended intake, use the following formula,
Percentage = (Actual Intake / Recommended Intake) x 100%
Substituting the values in the formula we have,
⇒Percentage = (159 / 115) x 100%
⇒Percentage ≈ 138.3%
Therefore, the actual intake of carbohydrates is about 138% of the recommended intake, indicating that consumption of more carbohydrates than recommended.
learn more about carbohydrates here
brainly.com/question/10052351
#SPJ4
What is the meaning of "Euclidean geometry"?
The concept of Euclidean geometry is the study of geometrical shapes (plane and solid) and figures based on different theorems and axioms.
What is the concept of Euclidean geometry?The concept of Euclidean geometry as required to be discussed is basically introduced for flat surfaces or plane surfaces. The postulates of the Euclidean geometry are as follows!
1 : A straight line may be drawn from any one point to any other point.
2 :A terminated line can be produced indefinitely.
3 : A circle can be drawn with any centre and any radius.
4 : All right angles are equal to one another (Congruent).
Read more on Euclidean geometry;
https://brainly.com/question/28641978
#SPJ1
what the answer of this
The correct option for this question is (d) "No, none of the sides are parallel."
why it is and what is a Quadrilateral?
To determine if quadrilateral CDEF is a trapezoid, we need to check if it has exactly one pair of parallel sides.
We can find the slopes of the line segments CD and EF as follows:
slope of CD = (5 - (-6)) / (-8 - (-1)) = 11 / (-7) = -1.57 (approx.)
slope of EF = (8 - 5) / (3 - 4) = 3 / (-1) = -3
Since the slopes are different, CD and EF are not parallel, and therefore, CDEF is not a trapezoid.
Alternatively, we can also find the slopes of the line segments CF and DE as follows:
slope of CF = (-5 - (-6)) / (4 - (-1)) = 1/5
slope of DE = (8 - 5) / (3 - (-8)) = 3/11
Since the slopes are different, CF and DE are not parallel, and therefore, CDEF is not a trapezoid.
Therefore, the answer is option (d) "No, none of the sides are parallel."
A quadrilateral is a geometric shape that has four straight sides and four vertices (corners). It is a two-dimensional polygon with four sides and four angles. The sum of the interior angles of a quadrilateral is always 360 degrees.
There are many types of quadrilaterals, including squares, rectangles, rhombuses, parallelograms, trapezoids, and kites.
To know more about Quadrilaterals visit:
https://brainly.com/question/29934440
#SPJ1
What quadratic function is represented by the graph?
A. f(x) = −2x²+x+6
B. f(x) = 2x²x+6
C. f(x) = 2x²+x+6
D. f(x) = − 2x² - x - 6
Answer:
Answer: C. f(x) = 2x²+x+6
The dot plots below show the number of students in attendance each day in Mr. Wilson's class and Mr. Watson's class in April. What is the difference of the medians as a multiple of the interquartile range? A. B. C. D.
The difference of the medians as a multiple of the interquartile range is 0.5,So the correct answer is option (A) 0.5.
What is median?The median is a measure of central tendency that represents the middle value in a data set when the values are arranged in numerical order.
For example, consider the data set {3, 5, 2, 6, 1, 4}. When the values are ordered from smallest to largest, we get {1, 2, 3, 4, 5, 6}. The median in this case is the middle value, which is 3.
We can first find the medians and interquartile ranges of the two dot plots.
For Mr. Wilson's class:
Median = 12
Q1 = 10
Q3 = 14
IQR = Q3 - Q1 = 14 - 10 = 4
For Mr. Watson's class:
Median = 10
Q1 = 8
Q3 = 12
IQR = Q3 - Q1 = 12 - 8 = 4
The difference of the medians is |12 - 10| = 2. Therefore, the difference of the medians as a multiple of the interquartile range is:
$$\frac{2}{4} = \boxed{0.5}$$
To know more about interquartile range visit:
https://brainly.com/question/29204101
#SPJ1
complete the table below.
4775 g968r648 747474874 483892874 23773259635y84b2375789325 7437594365825 4378574937587 49388959365n 98437858746587 32o4iy548569
Answer:
?
Step-by-step explanation:
A pyrotechnician is running a test for a fireworks display he is providing for an event downtown. He launches a test shell from the top of a tower. The elevation, in meters, of the test shell t seconds after being projected is shown by the following expression.
Look at the picture attached and then choose your answer pls!
Select the best description of the term 29.4 in the expression.
A. the total time the test shell is in the air
B. the initial velocity of the test shell
C. the highest elevation the test shell reaches
D. the initial elevation of the test shell
The best description of that term 29.4 in the expression is the initial velocity of the test shell. That is option B.
Who is a pyrotechnician?A pyrotechnician is defined as the individual that has been trained for safe storage, handling, and functioning of pyrotechnics such as fireworks.
While testing the display of the fireworks, he took note of the following:
The elevation in meters
The time in seconds
The change in velocity should be noted as the velocity of distance covered by a moving object with time.
Therefore, the term 29.4 is the initial velocity of the fireworks he projected.
Learn more about velocity here:
https://brainly.com/question/25749514
#SPJ1
Question 11 (1 point)
(06.03 LC)
What is the product of the expression, 5x(x2)?
a
25x2
b
10x
c
5x3
d
5x2
The expressiοn 5x(x²) is equal tο 5 * x¹ * x² (5 * x³ = 5x³). Thus, οptiοn (c) 5x3 is the cοrrect respοnse.
Hοw are prοducts οf expressiοn determined?The cοefficients (the numbers in frοnt οf the variables) οf the expressiοn 5x(x²) can be multiplied, and the expοnents οf the variables can be added, tο determine the prοduct.
The first cοefficient we have is 5 times 1, giving us 5. Sο, using the secοnd x², we have x tο the pοwer οf 2 multiplied by x tο the pοwer οf 1 (frοm the first x). Expοnents are added when variables with the same base are multiplied. Sο, x¹ multiplied by x² results in x³.
Cοmbining all οf the parts, the phrase becοmes:
5x(x²) is equal tο 5 * x¹ * x² (5 * x³ = 5x³).
Thus, οptiοn (c) 5x³ is the cοrrect respοnse.
Learn more about Exponents here:
brainly.com/question/5497425
#SPJ1
graph each system of equations. solve each system and clearly mark the solutions on your graph. assume 0\le \theta \le 2\pi : r
The system of equation is now written as:
y = −2x−8
y = x+ 1
First, we will plotting two system of equations on the same axis, and then we'll explore the different factors to consider when plotting two linear inequalities on the same axis. The technique for drawing a system of linear equations is the same as for drawing a single linear equation. We can draw two lines on the same axis system using an array of values, slope and y-intercept or x-y-intercept.
Now,
these using slope-intercept form on the same set of axes. Remember that slope-intercept form looks like
y = mx+ b, so we will want to solve both equations for y.
First, solve for y in 2x+y=−8
2x+ y = −8
OR, y = −2x− 8
Second, solve for y in
x− y = −1
Or, y = x+1
The system is now written as
y = -2x - 8
y = x + 1
Now you can plot the two equations using their slope and intercept on the same set of axes as shown in the figure below. Note that these charts have one thing in common. It is their intersection, the point that lies on the two lines. In the next section we will verify that this point is the solution of the system.
Complete Question:
Graph each system of equations. Solve each system and clearly mark the solutions on your graph and consider the following system of linear equations in two variables.
2x+ y = −8 and x− y = −1
Learn more about Equation:
https://brainly.com/question/29657983
#SPJ4
If a₁ = 5 and an
5an-1 then find the value of a4.
If a₁ = 5 and an 5an-1 then The value οf a₄ is 625.
What is arithmetic sequence?An arithmetic sequence is a sequence οf numbers in which each term after the first is fοund by adding a fixed cοnstant number, called the cοmmοn difference, tο the preceding term. Fοr example, the sequence 2, 5, 8, 11, 14, ... is an arithmetic sequence with a cοmmοn difference οf 3, since each term after the first is fοund by adding 3 tο the preceding term.
The nth term οf an arithmetic sequence can be fοund using the fοrmula:
an = a1 + (n-1)d
where an is the nth term, a1 is the first term, and d is the cοmmοn difference. The sum οf the first n terms οf an arithmetic sequence can be fοund using the fοrmula:
Sn = n/2 (a1 + an)
We are given that a₁ = 5, and that the nth term is 5 times the (n-1)th term. We can use this infοrmatiοn tο find the value οf a₄ as fοllοws:
a₂ = 5a₁ = 5(5) = 25
a₃ = 5a₂ = 5(25) = 125
a₄ = 5a₃ = 5(125) = 625
Therefore, the value of a₄ is 625.
To learn more about arithmetic sequence from the given link:
https://brainly.com/question/10396151
#SPJ1
you have 984 grams of a radioactive kind of krypton. How mich will be left after 6 minutes if its half life is 3 minutes
After 6 minutes, 266 grams of a radioactive form of krypton will still be present.
What is unitary method?"A method to find a single unit value from a multiple unit value and to find a multiple unit value from a single unit value."
We always count the unit or amount value first and then calculate the more or less amount value.
For this reason, this procedure is called a unified procedure.
Many set values are found by multiplying the set value by the number of sets.
A set value is obtained by dividing many set values by the number of sets.
Since, its half-life is 3 minutes.
Hence, The amount of a radioactive kind of krypton after 6 minutes is,
⇒ 984 / 4
⇒ 246 grams
learn more about unitary method click here:
brainly.com/question/24587372
#SPJ1
.2 In the diagram below, given that XY = 3cm, XZY = 30° and YZ = x, is it possible to solve for x using the theorem of Pythagoras? Motivate your answer. Show Calculations
Sin 30 =3/x
1/2=3/x
x=6
For the functions f(x)=−7x+3 and g(x)=3x2−4x−1, find (f⋅g)(x) and (f⋅g)(1).
Answer:
Find f(g(x)) f(x)=7x-8 , g(x)=3x-2. f(x)=7x−8 f ( x ) = 7 x - 8 , g(x)=3x−2 g ( x ) = 3 x - 2. Step 1. Set up the composite result function. f(g(x)) f ( g ...
please mark me as a brainalist
