Read the picture. The question is on number 1.
1 answer:
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Answer:
4
Step-by-step explanation:
Solving for h(t) = 0, we find ...
0 = -16t^2 +256
0 = -t^2 +16 . . . . . . divide by 16
t^2 = 16 . . . . . . . . . .add t^2
t = 4 . . . . . . . . . . . . .positive square root
The ball hits the ground after 4 seconds.
