Mathematics, 17.02.2021 03:50 rasv4799

A rocket is projected directly upward with an initial velocity of 352 ft/sec from the ground. After t seconds, it's height in feet is given by f(t) = -16t^2 + 352t. After how many seconds will it be 640 feet above the ground?

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A rocket is projected directly upward with an initial velocity of 352 ft/sec from the ground. After...

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