A baseball player hits a ball toward the outfield. The height h of the ball in feet is modeled by h(t) = -16t2 + 22t + 3, where t is the time in seconds. In addition, the function d(t) = 85t models the horizontal distance d traveled by the ball. If no one catches the ball, how long will it stay in the air?

Question

anonymous · Answer

-16t2 + 22t + 3 = 0 i think

anonymous · Answer

1.5

anonymous · Answer

how did you get 1.5?

anonymous · Answer

just solve the equation

anonymous · Answer

I did, and i didn't 1.5

anonymous · Answer

what u have

anonymous · Answer

yes the roots are 1.5 and a negative root

anonymous · Answer

im also suppose to find out what the horizontal distance that the ball travels before it hits the ground?
I got 127.5 can anyone tell me if im wrong?

anonymous · Answer

yes but in this problem you don't need this

anonymous · Answer

For this question, only the first equation is required

anonymous · Answer

I know, but it was the problem under it. I was suppose to find it out also. But thank you  (:

anonymous · Answer

So you get the time = 1.5

d(1.5) = 85 * 1.5 = ?