subject
Mathematics, 05.11.2019 02:31 GreenHerbz206

runners in a 5k race were surveyed about their finishing times (f) and the number of previous races they had run (n). there was a negative linear relationship between f and n that is best modeled by the equation f=−1.2n+38.1 . what statement is true?
the model predicts that the finishing time for a runner in a 5k race is about 38.1 minutes.
the model predicts that for each additional race a runner has run, the finishing time decreases by about 1.2 minutes.
the model predicts that the finishing time for a runner in a 5k race is about 38.1 minutes.
the model predicts that the finishing time for a runner who has run 1.2 previous 5k races is about 38.1 minutes.

ansver
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 15:30, shawn451
After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? check all that apply. a. 9% + 3x2 = 14 + x-1 b. -x+ + 4x + 7 = -32-9 c. 5x + 4 = 3x4 - 2 d. 2x2 + x2 + x = 30
Answers: 1
image
Mathematics, 21.06.2019 22:30, rubycarbajal
The area of a circle is equal to 1 dm². find the radius of the circle.
Answers: 1
image
Mathematics, 22.06.2019 01:00, NetherisIsTheQueen
Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit
Answers: 1
image
Mathematics, 22.06.2019 02:00, AnastasiaJauregui
If p(x) is the total value of the production when there are x workers in a plant, then the average productivity of the workforce at the plant is a(x) = p(x) x . (a) find a'(x). a'(x) = xp'(x) − p(x) x a'(x) = xp'(x) − p(x) x2 a'(x) = p'(x) − p(x) x a'(x) = xp'(x) − p'(x) x2 a'(x) = p'(x) − xp(x) x2 why does the company want to hire more workers if a'(x) > 0? a'(x) > 0 ⇒ a(x) is ; that is, the average productivity as the size of the workforce increases. (b) if p'(x) is greater than the average productivity, which of the following must be true? p'(x) − xp(x) > 0 p'(x) − xp(x) < 0 xp'(x) − p'(x) > 0 xp'(x) − p(x) < 0 xp'(x) − p(x) > 0
Answers: 2
You know the right answer?
runners in a 5k race were surveyed about their finishing times (f) and the number of previous races...

Questions in other subjects:

Konu
Mathematics, 02.11.2020 21:00
Konu
Mathematics, 02.11.2020 21:00
Konu
Mathematics, 02.11.2020 21:00
Konu
Mathematics, 02.11.2020 21:00