1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
miskamm [114]
3 years ago
13

A psychologist collects data on the time, w, in minutes, people walk each day and their scores, t ,on a stress test. The scores

are from 0 to 100, with higher scores meaning more stress. She finds that there is a negative linear association between w and t that is best modeled by the equation t=−2.5w+48.1 .
What is the meaning of 48.1 in this equation?

A: The people in the study walked an average of 48.1 minutes each day.

B: For each additional minute spent walking, the model predicts that a person's score on the stress test will go down by about 48.1 points.

C: The people who walked each day had an average score of 48.1 on the stress test.

D: The model predicts that a person who does not walk each day will score about 48.1 on the test.
Mathematics
2 answers:
faust18 [17]3 years ago
8 0

Answer: D: The model predicts that a person who does not walk each day will score about 48.1 on the test.


Step-by-step explanation:

Given: A psychologist collects data on the time, w, in minutes, people walk each day and their scores, t ,on a stress test.

She finds that there is a negative linear association between w and t that is best modeled by the equation t=-2.5w+48.1 .

When we put w=0 minutes, t=48.1

It implies that if any patient doesn't walk will score 48.1.

Hence, the model predicts that a person who does not walk each day will score about 48.1 on the test.

Oduvanchick [21]3 years ago
5 0

The correct answer is <u><em>D.The model predict that a person who does not walk each day will score about 48.1 on the test.</em></u> I took the test VuV

Hope you have a nice day/night!

You might be interested in
How do you solve 2^5? Explain using academic vocabulary
anastassius [24]

Answer:

well if its 2*5 then its 10 because you have to count by 5's two times and you'll get 10. I hope this helps. :3

6 0
3 years ago
Fill in the blank
Andrej [43]

Answer:

    dont click that link report it

Step-by-step explanation:

8 0
3 years ago
HELP ME I WILL BRAINLIST U ​
ANEK [815]

Answer:

C

Step-by-step explanation:

This question you can use simple elimination, can save you time if it's right. Obviously its not A or B as the hypotenous needs to be bigger than the base. Knowing the base is 32, there is not enough room to justify an additional 20 feet, eliminating D. Answer must be C. If you wanted to do it the right way use trig/socatoa to find the missing hypotenouse as the top angle of the triangle is 45, just like the other upside down one.

7 0
3 years ago
I need help? Can anyone help me ?
Rina8888 [55]
Given a coordinate point (x, y), the first value of the point represents the value on the x-axis while the second value represent the value on the y-axis.

1.) To express the values (-4, -1), (-1, 2), (1, -4), (2, -3), (4, 3) as a table, we have:

 x          y
-4         -1
-1          2
 1         -4
 2         -3
 4          3

The values (-4, -1), (-1, 2), (1, -4), (2, -3), (4, 3) expressed as a graph have been attached as graph_1


To express the values (-4, -1), (-1, 2), (1, -4), (2, -3), (4, 3) as a mapping, we have two circles with one labelled x and the other one labelled y.
Inside the circle labelled x are the numbers -4, -1, 1, 2, 4 written vertically and inside the circle labelled y are the numbers -4, -3, -1, 2, 3 written vertically.
There are lines joining from the circle labelled x to the circle labelled y with line joining -4 in circle x to -1 in circle y, -1 in circle x to 2 in circle y, 1 in circle x to -4 in circle y, 2 in circle x to -3 in circle y, 4 in circle x to  3 in circle y.

The domain of the relation is the set of the x-values of the relation, i.e. domain is {-4, -1, 1, 2, 4}.
The range of the relation is the set of the y-values of the relation, i.e. range is {-4, -3, -1, 2, 3}

2.) To express the values (-2, 1), (-1, 0), (1, 2), (2, -4), (4, 3) as a table, we have:

 x          y
-2         1
-1         0
 1          2
 2         -4
 4          3

The values (-2, 1), (-1, 0), (1, 2), (2, -4), (4, 3) expressed as a graph have been attached as graph_2


To express the values (-2, 1), (-1, 0), (1, 2), (2, -4), (4, 3) as a mapping, we have two circles with one labelled x and the other one labelled y.
Inside the circle labelled x are the numbers -2, -1, 1, 2, 4 written vertically and inside the circle labelled y are the numbers -4, 0, 1, 2, 3 written vertically.
There are lines joining from the circle labelled x to the circle labelled y with a line joining -2 in circle x to 1 in circle y, -1 in circle x to 0 in circle y, 1 in circle x to 2 in circle y, 2 in circle x to -4 in circle y, 4 in circle x to  3 in circle y.

The domain of the relation is the set of the x-values of the relation, i.e. domain is {-2, -1, 1, 2, 4}.
The range of the relation is the set of the y-values of the relation, i.e. range is {-4, 0, 1, 2, 3}
7 0
3 years ago
How can distributive property be used to solve 7 x 391
Advocard [28]

Answer:

7x ³⁹¹

Step-by-step explanation:

1: "x3" was replaced by "x^3".

7 0
3 years ago
Other questions:
  • Can you walk me through this problem i dont understand it AREA OF POLYGONS
    7·1 answer
  • g A random variable X has a probability density function fX(x) = ? 0.5 sin(x) , 0 ≤ x ≤ π 0 , otherwise Another random variable
    7·1 answer
  • Five friends went out to dinner, and the bill came to $85. They wanted to leave a 17% tip because they thought the waiter did a
    14·1 answer
  • In 2009, Usain Bolt set the world record for sprinting 100m in approximately 9 3/5 seconds.
    13·1 answer
  • If 8,472 divided by k=12, what is the value of k?
    15·2 answers
  • Kelso is in charge of a bake sale. On each table, t, there will be a platter of 24 cookies and 2 bowls of brownies with b browni
    11·1 answer
  • Please help thanks very much
    8·1 answer
  • Please help this is due tomorrow morning
    7·1 answer
  • I will give brainliest out to anyone who answers correctly please helpmeeee
    15·2 answers
  • What is constant of proportionality ? y=14x k=?​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!