Mathematics, 13.12.2021 19:00, jediDR

A smart-phone is thrown upwards from the top of a 192-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 = - 16t² + 16t + 192.
When will the smart-phone hit the ground?

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A smart-phone is thrown upwards from the top of a 192-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 = - 16t² + 16t + 192. When will the smart-phone hit the ground?

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A smart-phone is thrown upwards from the top of a 192-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 = - 16t² + 16t + 192.
When will the smart-phone hit the ground?