Answer: The height of the person is 96 feet.
Step-by-step explanation:
Hi, to answer this question we simply have to substitute t=4 seconds in the equation given:
h (t) = -6t² + 48t
Replacing and solving:
h(4) = -6 (4)² + 48 (4)
h(4) = -6 (16) + 192
h(4) = -96 + 192
h(4) = 96 ft
The height of the person after 4 seconds is 96 feet.
Feel free to ask for more if needed or if you did not understand something.