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Mathematics, 12.02.2021 20:00 stuckonquestions

An object is launched from on top of a tower and is modeled by `f\left(x\right)\ =\ -5x^{2\ }+\ 20x\ +\ 4`, where x is measured in meters.

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An object is launched from on top of a tower and is modeled by `f\left(x\right)\ =\ -5x^{2\ }+\ 20x\...
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