# Math

posted by
**Alyson**
.

11. A rocket is fired upward from some initial height above the ground. Its height h in feet above the ground t seconds after it is fired is given by h = -16t2 + 48t +448.

(i) What is its initial height? __________ ft.

(ii) What is its maximum height? ___________ ft.

(iii) How long does it take to reach the ground? __________ sec.