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17 April, 16:34

A bungee jumper falls from a bridge 300 feet above ground. Her height above ground after t seconds is given by the equation h=-16t^2+400 where h is the height of the jumper in feet and t is the time in seconds since her jump. Approximately how long will it take for the bungee jumper to reach 100 feet above the ground on her initial jump?

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  1. 17 April, 17:28
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    Answer for first one is b. 4.3 h = - 16t^2+400 100 = - 16t^2+400 100-400=-16t^2 - 300 = 16t^2 (divide both sides by - 16) 18,75 = t^2 (take square root of both sides 4.3 = t
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