Question

A football is kicked into the air from an initial height of 4 feet. The height, in feet, of the football above the ground, is given by s(t) = -16t^2 + 50t + 4, where the t is time, in seconds, and t>= 0. At what time will the football be 25 feet above the ground?

Answer 1

I have another question I posted as well.

Can anyone please help me? I'm unsure how I will complete this problem.

Answer 2

Is anyone one online?

Answer 3

What are the choices?

Answer 4

A. 3.625 seconds
B. 0.5 seconds
C. 0.5 seconds or 3.625 seconds
D. 0.5 seconds or 2.625 seconds

According to the problem, which of these are correct?

Answer 5

Does anyone know the answer?

Answer 6

I need help with this.

Answer 7

Maybe the answer is C. See if that's correct.

Answer 8

I need someone to answer this who is certain please.

Answer 9

Does anyone else know if the answer if C or not?

Answer 10

*Does anyone else know if the answer is C or not?

*I made a typo.

Answer 11

jeez - all these guesses? Just solve
-16t^2 + 50t + 4 = 25
sure looks like D to me

Answer 12

Thank you very much! I definitely appreciate it!