Question: A rocket is fired upward from the ground with an initial velocity of 280 feet per second. Neglecting airresistance, the height of the rocket at

A rocket is fired upward from the ground with an initial velocity of 280 feet per second. Neglecting airresistance, the height of the rocket at any time t can be described in feet by the polynomial 16t2+280t. Find the height of the rocket at t=7.5seconds.

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