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) 
3 
4 
5 
6

I get 2.9, so rounding it, it would be 3 which i guess is the answer?

SkatingDJ · Answer

or is it 4? (that was my original answer before I redid it and switched it to 3, confused...)

Lucina · Answer

I got 2.9 as well. Your answer is correct =)