Question

help me please! will mark brainliest

Answer 1

Answer:

4 seconds

Step-by-step explanation:

h = - 12t² + 44t + 16

- 12t² + 44t + 16 = 0   ║ ÷ 4

- 3t² + 11t + 4 = 0

D = b² - 4ac = (11)² - 4(- 3)(4) = 13²

$t_{1}$ = ( - 11 - 13 ) ÷ 2( - 3 ) = - 24 ÷ ( - 6 ) = 4 seconds

$t_{2}$ = ( - 11 + 13 ) ÷ 2( - 3 ) = - $\frac{1}{3}$ < 0 (not a solution of the task)