Question
hen a ball is thrown up into the air, the function h(t) = −16t2 + 72t gives the height h in feet of the ball t seconds after it has been thrown. Find the height of the ball 4 seconds after it has been thrown. (1 point)
Responses
32
32
4384
4384
288
288
48
48
Responses
32
32
4384
4384
288
288
48
48
Answers
GPT 3.5
To find the height of the ball 4 seconds after it has been thrown, we can substitute t = 4 into the function h(t) = -16t^2 + 72t.
h(4) = -16(4)^2 + 72(4)
h(4) = -16(16) + 288
h(4) = -256 + 288
h(4) = 32
Therefore, the height of the ball 4 seconds after it has been thrown is 32 feet.
The correct answer is 32.
h(4) = -16(4)^2 + 72(4)
h(4) = -16(16) + 288
h(4) = -256 + 288
h(4) = 32
Therefore, the height of the ball 4 seconds after it has been thrown is 32 feet.
The correct answer is 32.