Compute the estimated regression's prediction for the average score of students given 98, 129, or 159 minutes to complete the exam.
Given 98 minutes, the estimated regression's prediction for the average score of students is 91.94 .
Given 129 minutes, the estimated regression's prediction for the average score of students is 108.37
Given 159 minutes, the estimated regression's prediction for the average score of students is 124.27 (Round your responses to two decimal places.)
Compute the estimated gain in score for a student who is given an additional 32 minutes on the exam.
The estimated gain in score for a student who is given an additional 32 minutes on the exam is (Round your response to two decimal places.)

Answers

Answer 1

Answer:

The estimated gain in score for a student who is given an additional 32 minutes on the exam is 16.96

Step-by-step explanation:

The estimated regression prediction is given by:

[tex]\hat{y}=40+0.53x[/tex]

Where x denotes the time

y denotes the average score

A)

Substitute x = 98

[tex]\hat{y}=40+0.53(98) = 91.94[/tex]

B)

Substitute x = 129

[tex]\hat{y}=40+0.53(129) = 108.37[/tex]

C)

Substitute x = 159

[tex]\hat{y}=40+0.53(159) = 124.27[/tex]

D)the estimated gain in score for a student who is given an additional 32 minutes on the exam.

[tex]\hat{y}=40+0.53(x+32)=40+0.53x+9.57=y+16.96[/tex]

So, the estimated gain in score for a student who is given an additional 32 minutes on the exam is 16.96


Related Questions

You have a box with dimensions 2 ft. x 4 ft. x 3 ft. a. If you want to wrap the box, what is the minimum amount of wrapping paper you need? b. If the paper cost $2.59 per square foot, what is the minimum cost?

Answers

Answer: A) 52 ft  B) $134.68

Step-by-step explanation:

First find the surface area by multiplying the dimensions together.

2 x 4 = 8

2 x 3 = 6

4 x 3 = 12

Then add them up and multiply by two because there are two of each side.

26 x 2 = 52

To find the cost, multiply 52 by $2.59 to get the price.

52 x $2.59 = $34.68

Juan can do 48 jumping jacks in 2 minutes. How many jumping jacks will Juan have completed after 17 minutes?

Answers

Answer:

384 and a half.

Step-by-step explanation:

Took me a while, but just add 48 for every 2 minutes.

A given line has the equation 10x+2y=-2.
What is the equation, in slope-intercept form, of the line that is parallel to the given line and passes through the point (0,
12)?
VX
O y=-5x+12
O 5x+y=12
O y-12=5(x-0)
O 5x+y=-1

Answers

Answer:

Step-by-step explanation:

y=-5x+12

10x+2y=-2

Subtract 10x to the other side of the equation and you will get 2y=-10x-2

Then divide both side by 2 to get y by itself

It will lead you to y=-5x+1

Notice that your point is (0,12) and it says parallel so you will keep your slope but your y-intercept will change

Final answer: y=-5x+12

I believe it's y= -5x+12. I really hope this helps. Happy schooling!!

What does each space between two numbers represent

Answers

The fact that I got this app that will help u pass all yo classes but u gotta help me first

Makayla plotted two points, (0, 0) and (3, 33), on a coordinate grid. Noah says that she is graphing a proportional relationship. Is Noah correct? Explain.​

Answers

Answer:

Noah is correct.

Step-by-step explanation:

Noah is correct, a proportional relationship can be formed by observing two conditions:

1) Knowing at least two distinct collinear points on coordinate grid.

2) Ratio between dependent and independent variables must be the same on each point.

3) Relationship must include origin.

Makayla used two points: (0, 0) and (3, 33). Therefore, she observed all conditions described above:

Condition 1: Makayla plotted (0,0) and (3,33). According to Geometry, two distinct point on coordinate grid are always collinear.

Condition 2: The proportionality ratio is:

[tex]k = \frac{33}{3}[/tex]

[tex]k = 11[/tex]

Condition 3: The relationship included origin: (0, 0).

- What is the area of the square?
(A) 16

(B) 25

(C) 32

(D) 36

(E) 41

Answers

Answer:

I counted 32 squares in and out

Answer:

A=a^2, so A=4^2=16 , or 4*4=16

Step-by-step explanation:

All sides of a square are equal, so the length of the sides are all 4. Put 4 in for a in the formula A=a^2 or Area = side length squared.

A = 4^2

A = 4 * 4

A = 16

One night in January, the temperature in Alaska is -16℉. The next day, the temperature is half of what it was the night before. What is the temperature? One night in January, the temperature in Alaska is -16℉. The next day, the temperature is half of what it was the night before. What is the temperature?

Answers

Answer:

-8 degrees

Step-by-step explanation

Half of negative 16 would be negative 8.

Answer:

-8

Step-by-step explanation:

-16 ÷ 2 = -8

You could also do:

16 ÷ 2 = 8

and then put a negative in front of 8

And to prove it's true,

8 x 2 = 16

-8 x 2 = -16

What is the correct answer?

Answers

Answer:

d) 3

Step-by-step explanation:

4t^2 +5t -1

in this equation there are 3 terms:

4t^2,      5t,        and  -1

Answer:

answer is 3 because there are 4t square + 5t -1

1 2. 3

Round 125000 to 3 decimals!

Answers

12.50000 is the answer

Answer:

1.25 is your answer, Since the zeros are just place holders

Step-by-step explanation:

hope this helps!

Have a good day.

4x+y+6z=7
3x+3y+2z=17
-x-y+z=19

Answers

Answer:

the 2nd one

Step-by-step explanation:

Find the perimeter of the rectangle.
5 in.
9 in.

Answers

Answer:

28 inches

Step-by-step explanation:

if a plane travels 1,200 miles in 2 hours how many mph is the plane going

Answers

Answer:

600

Step-by-step explanation:

Sense 2 hours has passed you divide the amount of distance the plane has traveled by the amount of time it took. :)

Answer:

600 mph

Step-by-step explanation:

its the speed of the plane

the solution is distance travel which is 1,200 miles divided by the time 2 hours will be equal to 600 miles per hour (mph).

What are the roots of the quadratic equation x²-81=0

Answers

Answer:

What are the roots of the quadratic equation x²-81=0

Answer:

x = ± 9

Step-by-step explanation:

Given

x² - 81 = 0 ( add 81 to both sides )

x² = 81 ( take the square root of both sides )

x = ± [tex]\sqrt{81}[/tex] = ± 9

Thus roots are x = - 9, x = 9

Multiply (3.2 x 10^8) x (1.3 x 10^9)

Answers

Answer:

4.16 × 10 ^17

Step-by-step explanation:

Find the constant of proportionality.


Please don't answer if you don't know it. (it doesn't help whatsoever)

Answers

The constant of proportionality is 4.5 . Your welcome
The constant of proportionality is 4.5

Solve 6y + 2x = 14 for x.

Answers

Answer:

x = 7 - 3y

Step-by-step explanation:

6y + 2x = 14 (divide all by two)

3y + x = 7 (move 3y to the right to isolate x)

x = 7 - 3y

Answer:

7-3y=x

Step-by-step explanation:

6y+2x=14

2x=14-6y >>> isolate x variable

x=7-3y >>> simplify because everything is divisible by 2

What is the mixed number fraction for 4 5/8

Answers

Answer:

37/8

Step-by-step explanation:

Answer:

37/8

Step-by-step explanation:

gh

PLEASEEE HELP FAST! One solution each is given on four quadratic equations. Assuming that each quadratic equation has two solutions, what is the second solution for each equation?

Answers

Answer:

Step-by-step explanation:

If one solution of a quadratic equation is a complex number (a + bi),

Other solution of the equation will be the conjugate of the first solution.

So the other solution will be in the form of (a - bi)

If one solution is, x = -4 - 5i

Other solution will be, x = -4 + 5i

If one solution is, x = 4 + 5i

Other solution will be, x = 4 - 5i

If one solution is, x = 5 - 4i

Other solution will be, x = 5 - 4i

which is a linear function​

Answers

Answer:

B

Step-by-step explanation:

a linear function will always have a constant rate of change.

It’s a constant rate but it changes

2
Name the intersection of plane P and plane ABD.
C
P
B.
.
D
E
BD
Point D
AD
Point B and Point D

Answers

Answer:

D

Step-by-step explanation:

┈┈▕┈┈┈╱╲▕▀┈┈┈

┈┈┈╱╲┈┈▏▕╱╲┈┈┈

┈┈┈▏▕╱╲▏▎▏▕╱╲┈▃

┈╱╲▏▎▅▂▅▂▏▎▏▎▏▏

▂▏▎▏▕╭┳┳╮▏┊▏▕╱╲

▏▏┊▏▎┃┊┊┃▏▎▏▎▏▕

▇▆▅▃▂┻┻┻┻▂▃▅▆▇▉.

What's the answer please

Answers

Answer:

A. (3V/B) = h

Step-by-step explanation:

V = (1/3)Bh

3V = Bh

(3V/B) = h

Find an nth-degree polynomial function
n= 3;
- 2 and 6 + 2 i are zeros;
f(-1)= 53

Answers

Answer:

Find an nth-degree polynomial function.

Step-by-step explanation:

n= 3;

- 2 and 6 + 2 i are zeros;

f(-1)= 53

Bev scored 540 points. This was 158 points more than Ike scored. How many points did Ike score?

Answers

Answer:

382

Step-by-step explanation:

540 - 158

NEED HELP FAST I WILL MARK BRAINLYEST

Answers

Answer:

13/48

Step-by-step explanation:

13/6 / 8 = 13/6 x 1/8

13 x 1 = 13

6 x 8 = 48

13/48

Answer:

13/48

Step-by-step explanation

Eddie's recipe for bagels makes 18 bagels per batch. Eddie makes 2/3 batch of bagels. How many bagels does Eddie make

Answers

Answer:

He makes 12 bagels

Step-by-step explanation:

12 bagels = 2/3 batch

12 bagels
Eddie makes 12 bagels

Justin owns a food truck that sells tacos and burritos. He only has enough supplies to make 110 tacos or burritos. He sells each taco for $3.25 and each burrito for $5.75. Justin must sell a minimum of $520 worth of tacos and burritos each day. If 39 tacos were sold, determine the maximum number of burritos that the Justin could sell that would meet the requirements. If there are no possible solutions, submit an empty answer.

Answers

Answer:

so looks its an easy one

110 - 39 = 71

71 x 5.75 = 408.25

39 x 3.25 = 126.75

408.25 +126.75 = 535

71 burritos and 39 tacos = 535 dollars

69 burritos

What is mathematical expression?

A mathematical expression is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Tacos sold = 39

Burritos sold = x

Let x be the number Burritos sold

each taco sold for $3.25

each burrito sold for $5.75.

Total sell = $520

Now according to the given question,

39*3.25 + x*5.75 = 520

126.75 + 5.75x = 520

5.75x = 393.25

x = 68.39

x ≈ 69

Therefore, Justin has to sell 69 burritos to meet the requirements.

Read more about mathematical expression here:

https://brainly.in/question/26994041

#SPJ2

Will make you brainpower first person who answers correctly in major need of help!

Answers

Answer:4 and 35

Step-by-step explanation:

Am from the future

The extremes are 4 and 35.

What is extremes?

The extremes are the values of the proportion that are furthest apart when written in ratio form using a colon. For example: In the proportion a : b = c : d, ‘a’ and ‘d’ are the extremes.

In general, four numbers are said to be in proportion, if the ratio of the first two quantities is equal to the ratio of the last two. In general, the symbol for representing a proportion is “: :”

(i) The numbers a, b, c and d are in proportional if the ratio of the first two quantities is equal to the ratio of the last two quantities, i.e., a : b : : c : d and is read as ‘a is to b is as c is to d’. The symbol ‘ : : ‘ stands for ‘is as’.

(ii) Each quantity in a proportion is called its term or its proportional.

(iii) In a proportion; the first and the last terms are called the extremes; whereas the second and the third terms are called the means.

If four numbers a, b, c and d are in proportional (i.e., a : b : : c : d), then a and d are known as extreme terms and b and c are called middle terms.

(v) The fourth term of a proportion is called fourth proportional.

Given:

4/7 = 20/35

Now, by the definition of extremes

the first and the last term is extremes

So, 4 and 35 are the extremes.

Learn more about proportion here:

https://brainly.com/question/26974513

#SPJ2

Help please:)))
Find the equation of a line perpendicular to 4x - y = 2 that contains the point (4, -2). Write the equation in slope.
intercept form.

Answers

Answer:

y = -1/4x - 1

Step-by-step explanation:

First, put the equation in slope intercept form:

4x - y = 2

4x - 2 - y = 0

4x - 2 = y

y = 4x - 2

Perpendicular lines have opposite reciprocal slopes. Since the original slope is 4, the other line's slope will be -1/4

Plug in the given point and the slope into y = mx + b, then solve for b:

y = mx + b

-2 = -1/4(4) + b

-2 = -1 + b

-1 = b

Plug in the slope and b into the equation:

y = -1/4x - 1 is the equation

What is the equation of the following line written in general form? (The y-intercept is -1.)
A 2x + y - 1 = 0
B -2x - y - 1 = 0
C 2x - y - 1 = 0

Answers

Answer:

C

Step-by-step explanation:

the y-intercept is -1

the slope is 2/1

y=2x+-1

2x-y-1=0

-y=-2x+1

divide everything by -1

y=2x+-1

8,943
=
X 1000 +
x 100 +
x 10 +
x 1
x 103 +
x 10? +
x 10 +
II
X 1

Answers

Answer:

I think that's wrong

Step-by-step explanation:

1000+1000+1000+1000+1000+1000+1000+1000+1000+ 900+40+3 ?????? not sure but it welcome

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