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Mathematics, 29.07.2019 21:00 gallowayryan19

The function f(t)=-5t^2+15t+50 models the approximate height in feet of an object t seconds after it is launched. how many seconds does it take for the object to hit the ground?

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The function f(t)=-5t^2+15t+50 models the approximate height in feet of an object t seconds after it...

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