if a student scored 78 points on a test where the mean score was 84.5 and the standard deviation was 3.1. the student's z score

Answer:

2.5 seconds after the initial ball was struck.

Step-by-step explanation:

The height equations are:

• h = -16t² + 56t

• h = -16t² + 156t - 248

At the point where the balls intersect, both heights are alike, therefore:

-16t² + 56t = -16t² + 156t - 248

-16t² + 56t + 16t² - 156t + 248 = 0

- 100t + 248 = 0

248 = 100t

t = 248/100

t = 2.48 ≈ 2.5

Response:

41

Detailed explanation:

you are right. it is skewed to the left because the peak has more dots on that side.

James will retain his original t toy cars along with half of (t+13) cars, resulting in a total of...

... t + (t + 13/2) = (3t + 13)/2.... cars after receiving a gift from Paul.