anonymous
  • anonymous
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?
Mathematics
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
-16t2 + 22t + 3 = 0 i think
anonymous
  • anonymous
1.5
anonymous
  • anonymous
how did you get 1.5?

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anonymous
  • anonymous
just solve the equation
anonymous
  • anonymous
I did, and i didn't 1.5
anonymous
  • anonymous
what u have
anonymous
  • anonymous
yes the roots are 1.5 and a negative root
anonymous
  • anonymous
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
  • anonymous
yes but in this problem you don't need this
anonymous
  • anonymous
For this question, only the first equation is required
anonymous
  • anonymous
I know, but it was the problem under it. I was suppose to find it out also. But thank you (:
anonymous
  • anonymous
So you get the time = 1.5 d(1.5) = 85 * 1.5 = ?

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