3. Which expression represents the perimeter of this square?
4z + 3
w
A.
B.
8z + 6
162 + 12
822 + 6
162 +9
O.
D.

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second