Mathematics, 03.07.2019 03:00, only1cache

The height above the ground (in feet) of a ball dropped from the top of a 30-foot-tall building after t seconds is given by the polynomial − 16t^2 + 30 . what is the height of the ball after 1/2 second?

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The height above the ground (in feet) of a ball dropped from the top of a 30-foot-tall building afte...