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Mathematics, 21.05.2020 21:58 oclexieaocovtg07

A smart-phone is thrown upwards from the top of a 672-foot building with an initial velocity of 16 feet per second. The height h of the smart-phone after t seconds is given by the quadratic equation

h=−16t^2+16t+672

. When will the smart-phone hit the ground?

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A smart-phone is thrown upwards from the top of a 672-foot building with an initial velocity of 16 f...
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