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Mathematics 9 Online
OpenStudy (anonymous):

39 mlayton Im trying to figure out how long the water from a fountain stays in the air. The equation for the fountain is y=-16x^2+68.5x+0 (68.5 is velocity and 0 is starting height) I think that gives me x intercepts of (0,4.2812,0) Now how do i see how long it stays in the air?

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