A model rocket is launched upward with an initial velocity

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A model rocket is launched upward with an initial velocity of 280 feet per second. The height, in feet, of the rocket t seconds after the launch is given by
h = -16t2 + 280t.
How many seconds after the launch will the rocket be 350 feet above the ground? Round to the nearest tenth of a second.

Reference no: EM13991618

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