## airricuhh 3 years ago 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?

1. moneybird

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

2. Ackhat

1.5

3. airricuhh

how did you get 1.5?

4. Ackhat

just solve the equation

5. airricuhh

I did, and i didn't 1.5

6. Ackhat

what u have

7. jimmyrep

yes the roots are 1.5 and a negative root

8. airricuhh

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?

9. Ackhat

yes but in this problem you don't need this

10. moneybird

For this question, only the first equation is required

11. airricuhh

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

12. moneybird

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