Question: A rock is thrown downward from a certain height. The height s(t) in meters of the rock as a function of time t in seconds

A rock is thrown downward from a certain height. The height s(t) in meters of the rock as a function of time t in seconds is given by s(t) = -4.9t^(2) -34.3t + 20 How high above the ground is the bridge

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