Iratic Equations\ Question 22, *1.5.47\ HW Score:

68.18%,15

of 22 points\ Part 1 of 2\ (2) Points: 0 of 1\ An astronaut on the moon throws a baseball upward. The astronaut is

6ft,6in

. tall, and the initial velocity of the ball is

50ft

per sec. The height

s

of the ball in feet is given by the equation

s=-2.7t^(2)+50t+6.5

, where

t

is the number of seconds after the ball was thrown. Complete parts

a

and

b

.