25vavalid 25vavalid
  • 21-10-2022
  • Mathematics
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An observation deck extends 312 feet out above a valley. The deck sits 262 feet above the valley floor. If an object is dropped from the observation​ deck, its height h in​ feet, after t​ seconds, is given by h=-16t^2+262 . How long will it take for the object to be 6 feet above the valley​ floor?

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