: A bullet is fired straight upward with an initial speed of 720 ft/s. Its path is modeled by the equation h = -16t2 + 720t, where h is the height of the bullet t seconds after it was fired.

Answer 1

hits the ground....

-16t (t-45) = 0

t=45

-b/2a = 22.5

max height is -16*22.5 + 720*22.5 = 8100 ft

problem closed

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