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17 February, 06:40

Jerald jumped from a bungee tower. if the equation that models his height in feet is h=-16t^2 729, where t is the time in seconds, for which interval of time is he within 104 feet above the ground a) t>6.25 b) - 6.25

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  1. 17 February, 07:56
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    104 = - 16t^2 + 729

    16t^2 = 729 - 104 = 625

    t^2 = 625/16 = 39.0625

    t = sqrt (39.0625) = 6.25

    Therefore, t > 6.25 is the time at which he is within 104 feet above the ground.
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