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A ball is thrown downward from the top of a 200 foot building with an initial velocity of 24 ft./s. The height of the ball H in feet after tea seconds is given by the equation H equals -16 T^2-24t+200. how long after the ball is thrown will it strike the ground?

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A ball is thrown downward from the top of a 200 foot building with an initial velocity of 24 ft./s....
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