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Mathematics, 19.04.2021 04:50 Sourcandy

Help me pls this is my last question. I don't understand how to even do this please help me. Nothing on this website is helping me please help. A ball is launched into the sky at 54.4 feet per second from a 268.8 meter tall building. The equation for the ball’s height, h, at time t seconds is h = -3.2t2 + 54.4t + 268.8. When will the ball strike the ground?

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