5. The circumference of a circle is 157 centimeters. What is the area of the circle in terms
of 1?
A
7.577 cm?
B
157 cm
С
56.2577 cm
D
2257 cm2

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

Precalculus question, image attached.