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Mathematics 8 Online
OpenStudy (ltrout):

Will Fan & Medal! Question is in the next comment!

OpenStudy (anonymous):

Whats the question

OpenStudy (ltrout):

A football is kicked into the air from an initial height of 3 feet. The height, in feet, of the football above the ground is given by s(t) = -16t^2 + 35t + 3. Where t is the time in seconds and t >= 0. Which is the closest to the time when the football will be 20 feet above the ground?

OpenStudy (ltrout):

1) 2.72 seconds 2) 0.73 seconds or 1.46 seconds 3) 0.53 seconds 4) 0.53 seconds or 2.72 seconds

OpenStudy (ltrout):

I think it is 3) because when I plugged in 0.53 for t it was closest to 20.

OpenStudy (ltrout):

Why not?

OpenStudy (ltrout):

@Mehek14 How can I figure it out then?

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