Michael J. answered • 11/20/17

Effective High School STEM Tutor & CUNY Math Peer Leader

Use the height formula

h = -16t

^{2}+ 80t + 3We will put this formula in vertex form.

h = -16

**(**t^{2}- 5t + (25/4)**)**+ 100 + 3h = -16(t - 5/2)

^{2}+ 103Your vertex is (2.5, 103).

The maximum height is 103 feet.