A statistics teacher was interested in the relationship between the number of days students waited to start a project and the score that project received (out of 100 points). Information was collected on several students and was used to obtain the regression equation y = –3.64x + 96.5, where x represents the number of procrastination days and y is the predicted grade. What is the predicted grade of a student who procrastinated for 2 days?

25.96
85.58
89.22
103.78

Answers

Answer 1

Answer:

89.22

Step-by-step explanation:

just plug in 2 to the x in a calc like so: -3.64(2)+96.5 and it will give you 89.22 . got it right on my quiz like 5 min ago sooo yeah hope this helps people in the future.

Answer 2

Answer:

The person above me is correct.

The answer to this is C, 89.22

If you're looking for a question that is one week instead of two days, the answer is 71.02 (B). (This is a similar question that asks for 7 days instead of two)

ED2021


Related Questions

khan academy graph from the linear standard form.
Graph -14x + 21y = 84

Answers

Answer:

16

Step-by-step explanation:

because i am smort

The pictures show you the work and the answer.

-16 - (-t) = -45 how do you solve this please help​

Answers

Answer:

- 29

Step-by-step explanation:

Step 1:

- 16 - ( - t ) = - 45       Equation

Step 2:

- 16 + t = - 45      Open Parenthises

Step 3:

t = - 45 + 16      Add 16 on both siddes

Answer:

t = - 29

Hope This Helps :)

Answer:

t = -29

Step-by-step explanation:

Step 1: Write equation

-16 - (-t) = -45

Step 2: Solve for t

Simplify: -16 + t = -45Add 16 to both sides: t = -29

Step 3: Check

Plug in t to verify it's a solution.

-16 - (-(-29)) = -45

-16 - 29 = -45

-45 = -45

plllsssssssssss I needddd ansswwerss ​

Answers

Answer:

9/4 or 2¼

Step-by-step explanation:

have the number be represented by x2/3s OF x (of means to mulitply); 3 INCREASED BY (increased by means to add); 1/2 OF x (again, of means to multiply)so we can write the equation like this:2/3x=3+1/2xnow we need to get x by itselfmultiply both sides of the equation by 2/1 (the reciprocal of 1/22/3(2/1)=4/3 ; 1/2(2/1)=1now our equation look like 4/3x=3multiply both sides of the equation by 3/4 (the reciprocal of 4/3)4/3(3/4)=1 ; 3(3/4)=9/4x = 9/4 or 2¼

9. PRODUCTION Brown Pencil factory can
produce 150 gross of pencils in a quarter of an
hour. At this rate, how many gross of pencils
can the factory produce in seven and a half
hours?
Please hurry

Answers

Answer:

4500

Step-by-step explanation:

rewrite the expression from part B using the additive inverse that you identified in part C.

Answers

Answer:

12.3 – (-9.6) = 12.3 + 9.6

Step-by-step explanation:

d=b^2-4ac solve for a

Answers

Answer:

a=-d/4c+b^2/4c

Step-by-step explanation:

3.The snow starts at a depth of 10 inches and melts to 2 inches over the span of 4 hours. Determine the rate of change over the interval 0≤x≤4A.4 inches per hour

B.2 inches per hour

C.8 inches per hour

D.12 inch per hour

4.The population in a neighborhood increased from 120 to 156 people from 1990 to 1994. Find the rate of change over the interval 1990≤x≤1994.

A.1/9 of a person per year

B.9 people per year

C.36 people per year

D.4 people per year

5.The temperature increases from 60 degrees Fahrenheit to 84 degrees Fahrenheit from 8 in the morning to 12 in the afternoon. Find the rate of change over the interval 8≤x≤12

A.16 of a degree Fahrenheit per hour

B.4 degrees Fahrenheit per hour

C.6 degrees Fahrenheit per hour

D.24 degrees Fahrenheit per hour

If you answer, answer with all of the questions listed thank you.

Answers

3. B: 2 inches

4. C: 9 people

5. B: 6 degrees

The ratio of boys to girls on the cross country team is 5 to 3. How many girls are on the team if there are 25 boys on the cross country team?

Answers

Answer:

If there are 25 boys on the team, we need to find out what 25 divided by 5 is.

It is 5.

So next wed o 5x3.

That's 15.

So there are 15 girls on the team.

Hope this helps!

Answer:

the answer is 15.

Step-by-step explanation:

5x5 = 25 so you would multiply 3x5 to get 15.

find y when x=7 if y=3 when x=2
Please help

Answers

ANSWER: y=10.5

HOW TO SOLVE:

set 3/2 equal to x/7 and then solve for x. To do that, multiply 7x3 to get 21. Then divide 21 by 2 to get the answer.

Which graph is a function of x?

Answers

Answer:

Can i see the graphs?

Step-by-step explanation:

If 12 cats can catch 6 rats in 2 hours, how many hours would it take 50 cats to catch 75 rats?

Answers

Answer:

50 cats would take 6 hours to catch 75 rats.

Step-by-step explanation:

After reading the statement we noticed the existence of two relationships:

1) The amount of cats is directly proportional to the quantity of caught rats.

2) The amount of cats is inversely proportional to time taken to catch rats.

That is to say:

[tex]n \propto \frac{x}{y}[/tex]

[tex]n = k\cdot \frac{x}{y}[/tex] (Eq. 1)

Where:

[tex]n[/tex] - Amount of cats, dimensionless.

[tex]x[/tex] - Amount of caught rats, dimensionless.

[tex]y[/tex] - Time, measured in hours.

[tex]k[/tex] - Proportionality ratio, measured in hours.

Then, we obtain the following relationship by eliminating the proportionality ratio in (Eq. 1):

[tex]\frac{n_{1}\cdot y_{1}}{x_{1}} = \frac{n_{2}\cdot y_{2}}{x_{2}}[/tex] (Eq. 2)

Where:

[tex]n_{1}[/tex], [tex]n_{2}[/tex] - Initial and final amounts of cats, dimensionless.

[tex]x_{1}[/tex], [tex]x_{2}[/tex] - Initial and final amounts of caught rats, dimensionless.

[tex]y_{1}[/tex], [tex]y_{2}[/tex] - Initial and final times, measured in hours.

Now we clear final time in (Eq. 2):

[tex]y_{2} = y_{1}\cdot \left(\frac{n_{1}}{n_{2}} \right)\cdot \left(\frac{x_{2}}{x_{1}} \right)[/tex]

By knowing that [tex]y_{1} = 2\,h[/tex], [tex]n_{1} = 12[/tex], [tex]x_{1} = 6[/tex], [tex]n_{2} = 50[/tex], [tex]x_{2} = 75[/tex], then we get that time taken by 50 cats to catch 75 rats is:

[tex]y_{2} = (2\,h)\cdot \left(\frac{12}{50} \right)\cdot \left(\frac{75}{6}\right)[/tex]

[tex]y_{2} = 6\,h[/tex]

50 cats would take 6 hours to catch 75 rats.

What is the Next three term of this sequence 1,-3,-7,-11
Please help me

Answers

Answer:

-15, -19, -23

Step-by-step explanation:

Simply subtract 4 from the terms

Answer:

15 is the answer

Step-by-step explanation:

someone please help me

Answers

Answer:

1/49 it is the equal to that

Step-by-step explanation:

I

help please ASAP please​

Answers

Answer:

0

Step-by-step explanation:

So for the first number 5/6. You can round to 1. And for 2/3 it is also close to 1 so you can round to 1.

The answer is near 0.

Does this help?

Select the prime factors of 204.
A. 2 x 17
B. 6 x 17
C. 2 x 3 x 17
D. 2 x 2 x 3 x 17

Answers

I think it’s is either D or C

-5r - 10 = 10
HELP ASAP

Answers

Answer:

r equals -4

Step-by-step explanation:

there's your help

(5x² + 8x - 3) + (2x² - 7x + 13x)

Answers

Answer:

Simplify the expression.

7x2+14x−3

Step-by-step explanation:

The required simplification can be given as 7x²+ 14x - 3

What is simplification?

The operation in mathematics to process and interpret the relation to make function simple or more simple is called simplify and the phenomenon is called simplification.

We have,
= (5x² + 8x - 3) + (2x² - 7x + 13x)

= 5x²+ 2x²+ 8x - 7x + 13x - 3
= 7x²+ 14x - 3

Thus, the required simplification can be given as 7x²+ 14x - 3

Learn more about simplification here:
https://brainly.com/question/12501526

#SPJ2

Use the function to fill in the table.
g(x)=-3x+1

Answers

The answer from top to bottom of the graph, (-2,-7), (-1,4), (0,1), (1,-2),(2,0)

n + 2 = -14 - n help please with work if possible:))

Answers

Answer:

N = -16.

Step-by-step explanation:

To solve this equation, you'll need to take the -2 over to the other side.

The equation will become [tex]n = -14 - 2[/tex]

So, N = -16.

Hope I helped :)

PLS HELP! WILL BE MARKING BRAINLIEST!!!!!!!!

Answers

Answer:

Tracy most likely saw 13 cars, and 13 motorcycles. Other solutions that you can find are: average number of tires in the area, the mode number of tires in the area (see the most often), etc.

Step-by-step explanation:

2x + 4x = 78

2(13) + 4(13) = 78

As 13 and 13 are two prime numbers, the answer will be 13.

cuantos años tengo 33-45+62

Answers

Answer:

tienes 50 años

Step-by-step explanation:

PEMDAS

33-45+62

45+62=107

107-33=50

ANSWER ASAP!!!!! Evaluate ƒ(x) = |3x – 2| for ƒ(–5) and ƒ(7). Question 7 options: A) ƒ(–5) = 8, ƒ(7) = 7 B) ƒ(–5) = 12, ƒ(7) = –2 C) ƒ(–5) = –17, ƒ(7) = 9 D) ƒ(–5) = 17, ƒ(7) = 19

Answers

Answers:

f(-5) = 17f(7) = 19

====================================

Work Shown:

Plug in x = -5. Use PEMDAS to simplify

f(x) = |3x-2|

f(-5) = |3(-5)-2| ... replace every x with -5

f(-5) = |-15-2|

f(-5) = |-17|

f(-5) = 17

---------------------

Repeat for x = 7

f(x) = |3x-2|

f(7) = |3*7-2| ... replace every x with 7

f(7) = |21-2|

f(7) = |19|

f(7) = 19


Write 5.77 x 10 in standard form.
5.77 x 10–2

Answers

Answer:

The answer is 57.7 x.

Step-by-step explanation:

A test tube is cylindrical in shape with a length of 152 mm and a radius of 6.5 mm. What is the volume of the test tube? Report your answer in mm3 but do not include the unit mm3 in your answer box. Round your answer to the nearest whole number and do not include commas in your answer. The formula for volume of a cylinder is V=πr2h.

Answers

Answer:

20165

Step-by-step explanation:

Given:

Length/height (h) of cylindrical test tube = 152 mm

Radius of cylindrical test tube = 6.5 mm

Volume = [tex] \pi r^2h [/tex]

Required:

Volume of cylinder to nearest whole number

Solution:

The volume is given as [tex] V = \pi r^2h [/tex]

Take π as 3.14 and plug the values of r and h into the volume formula.

[tex] V = 3.14*6.5^2*152 [/tex]

[tex] V = 3.14*6.5*152 = 20165.08 [/tex]

Volume of the test tube = 20165 mm³ (nearest whole number)

6(2x - 4) = 12w
solve for x

Answers

Answer:

x = w + 2

General Formulas and Concepts:

Order of Operations: BPEMDAS

Distributive Property

Step-by-step explanation:

Step 1: Write equation

6(2x - 4) = 12w

Step 2: Solve for x

Distribute 6:                                       12x - 24 = 12wSubtract 24 on both sides:               12x = 12w + 24Divide 12 on both sides:                    x = (12w + 24)/12Factor GCF:                                        x = 12(w + 2)/12Simplify:                                              x = w + 2

100 POINTS!!!!!!!!!!! ( I NEED FAST ANSWERS ) Find the slope of the line that contains the points:(-6, 3) and (-4,5).

Answers

Answer:

slope = -4/5

Step-by-step explanation:

The area A of the rectangle shown
is described with the inequality
60 A 140. Write and solve a
compound inequality for x.

Answers

Step-by-step explanation:

Simplifying

4x + -5 = 20x

Reorder the terms:

-5 + 4x = 20x

Solving

-5 + 4x = 20x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-20x' to each side of the equation.

-5 + 4x + -20x = 20x + -20x

Combine like terms: 4x + -20x = -16x

-5 + -16x = 20x + -20x

Combine like terms: 20x + -20x = 0

-5 + -16x = 0

Add '5' to each side of the equation.

-5 + 5 + -16x = 0 + 5

Combine like terms: -5 + 5 = 0

0 + -16x = 0 + 5

-16x = 0 + 5

Combine like terms: 0 + 5 = 5

-16x = 5

Divide each side by '-16'.

x = -0.3125

Simplifying

x = -0.3125

Deb has two paintings in her portfolio
and paints three more each week. Kay has
twelve paintings in her portfolio and paints
two more each week. After how many
weeks will Deb and Kay have the same
number of paintings?

Answers

10 weeks

This is basically giving the equation of
3x + 2 = 2x + 12
You would subtract 2x from both sides, and 2 from both sides, and you would get x = 10

Find the slope of a line parallel to the given line: 7x - 3y = -6

Answers

Answer: 7/3

Step-by-step explanation:

dont answer this question i made it accidentally

Answers

hi i’m answering:) i hope you’ve had a good day.


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