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airricuhh Group Title

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?

  • 2 years ago
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  1. moneybird Group Title
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    -16t2 + 22t + 3 = 0 i think

    • 2 years ago
  2. Ackhat Group Title
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    1.5

    • 2 years ago
  3. airricuhh Group Title
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    how did you get 1.5?

    • 2 years ago
  4. Ackhat Group Title
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    just solve the equation

    • 2 years ago
  5. airricuhh Group Title
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    I did, and i didn't 1.5

    • 2 years ago
  6. Ackhat Group Title
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    what u have

    • 2 years ago
  7. jimmyrep Group Title
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    yes the roots are 1.5 and a negative root

    • 2 years ago
  8. airricuhh Group Title
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    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?

    • 2 years ago
  9. Ackhat Group Title
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    yes but in this problem you don't need this

    • 2 years ago
  10. moneybird Group Title
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    For this question, only the first equation is required

    • 2 years ago
  11. airricuhh Group Title
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    I know, but it was the problem under it. I was suppose to find it out also. But thank you (:

    • 2 years ago
  12. moneybird Group Title
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    So you get the time = 1.5 d(1.5) = 85 * 1.5 = ?

    • 2 years ago
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