Question

31 POINTS!!!!!! PLEASE HELP ME AND EXPLAIN YOUR ANSWER!!!!!! HELP 31 POINTS!

WILL MARK BRAINLIEST AND ITS DUE SOON!!!! please help me.

please answer in steps :(

Answer 1

Answer:

h = 36.75 feet

Step-by-step explanation:

h(t) = - 3t² + 15t + 18

x - coordinate of vertex is ( - $\frac{b}{2a}$ )

t = - 15 ÷ [ 2( - 3 )] = 2.5 seconds

h(t) = - 3(2.5)² + 15(2.5) + 18 = 36.75 feet