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meriva
3 years ago
15

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?

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.

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

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

The people who walked each day had an average score of 48.1 on the stress test.
Mathematics
1 answer:
Svetach [21]3 years ago
7 0
The answer is the last one D that is the correct answer 
good lock!!!

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Answer:

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Step-by-step explanation:

To find the surface area of any figure, you can simply find the sum of the areas of all the sides.  In question 3, the figure is a triangular prism that has two triangular bases and three rectangular sides.  The measurements for the triangles are b = 9m and h = 6m.  The formula for the area of a triangle is base times height divided by 2, or 9 x 6 = 54/2 = 27 m². However, since there are two triangular bases, the area for both is 54 m².  The measurements for the other three rectangles are given:

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