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OpenStudy (anonymous):
A model rocket is launched with an initial upward velocity of 175 ft/s. The rocket's height h (in feet) after t seconds is given by the following. h=165t-16t^2 find all values of t for which the rocket's height is 85 ft
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OpenStudy (anonymous):
go to physics!
OpenStudy (anonymous):
Let h=85, that will give a quadratic equation, -16t^2+175t-65=0. Solve.
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