Mathematics, 30.03.2021 20:40 nxusasmangaliso1191

A ball is thrown from an initial height of 3 feet with an initial upward velocity h = 3 +35t-161
Find all values of t for which the ball's height is 21 feet.

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A ball is thrown from an initial height of 3 feet with an initial upward velocity h = 3 +35t-161