Mathematics, 24.07.2019 00:50 PerfectMagZ

An object is propelled vertically upward from the top of a 224-foot building. the quadratic function s(t)=-16t^2+128t+225 models the balls height above ground, s(t), in feet, t seconds after it was thrown. how many seconds does it take till the object finnaly hits the ground? round to the nearest tenth of a second if necessary

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An object is propelled vertically upward from the top of a 224-foot building. the quadratic function...