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Math( help please ! )

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The height of a ball thrown vertically upward from a rooftop is modelled by h(t)=-5t^2=20t=50, where h(t) is the ball's height above the gorund,in meters, at time t seconds after the throw

a) determine the maximum height of the ball

b) how long does it take for the ball to reach its maximum height

c) how highis the rooftop

  • Math( help please ! ) -

    Read the problem carefully and if you still don't understand let me know :D

  • Math( help please ! ) -

    Your equation makes no sense, make sure you read what you typed before posting.

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