Respuesta :
Answer: square root of 3/2 seconds
Step-by-step explanation:
h=-16x²+24
Set the height to be 0
0=-16x²+24
-24=-16x²
24=16x²
24/16=x²
x²=3/2
x= square root of 3/2
you have to set the equation equal to 0 to represent when it hits the ground
0=-16x²+24
-24=-16x²
-24/16=x² --> -3/2=x²
x=-1.22474