A ball is thrown into the air with an initial upward velocity of 45 ft/s. Its height (h) in feet after t seconds is given by the function h = –16t² + 45t + 6. After about how many seconds will the ball hit the ground? (1 point)

Question

A ball is thrown into the air with an initial upward velocity of 45 ft/s. Its height (h) in feet after t seconds is given by the function h = –16t² + 45t + 6. After about how many seconds will the ball hit the ground? (1 point)
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Steve · Answer

I get 2.9 how did you get your answer?

Sandra · Answer

Yes, after refiguring it. Thanks

Margo · Answer

what is the answer ??????

Nana · Answer

The answer is 3. Use your graphing calculator, enter the equation in the y=, press graph, when the line hits the x-intercept, that's your answer. It's practically at 3, so the answer is 3. ^^