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anonymous

  • 5 years ago

After 1 second, the ball is 121 feet in the air; after 2 seconds, the ball is 224 feet in the air. Find the height, in feet, of the ball after 3 seconds in the air. use the quadratic function to solve.

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  1. anonymous
    • 5 years ago
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    I think you should indicate if there is initial velocity or not.

  2. anonymous
    • 5 years ago
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    The ball was launched from a sling shot. that's all i know.

  3. anonymous
    • 5 years ago
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    Sorry my stupid let me try to solve...

  4. anonymous
    • 5 years ago
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    it's okay. :b

  5. anonymous
    • 5 years ago
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    \[V0*t-1/2*g*t ^{2}\] V0*1-1/2*g*1=121 v0*2-1/2*g*4=224 After the solving equation , i found V0=130 feet/s , and g=18 feet/s^2 130*3-1/2*18*9=309 feet ,

  6. anonymous
    • 5 years ago
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    thanks! would you be interested in helping me with the last 3?

  7. anonymous
    • 5 years ago
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    If i can , but what you mean with last 3 ?

  8. anonymous
    • 5 years ago
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    i have 3 questions left.

  9. anonymous
    • 5 years ago
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    Ahh Okay (: i will try ... shoot!

  10. anonymous
    • 5 years ago
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    The company discovered that it costs $37 to produce 3 calculators, $213 to produce 7, $658 to produce 12. Using the quadratic function, find the cost of producing 8 calculators.

  11. anonymous
    • 5 years ago
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    Sorry i couldn't solve it. :/

  12. anonymous
    • 5 years ago
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    it's okay thanks though

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spraguer (Moderator)
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