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17 April, 21:02

A rock is thrown upward from the edge of a bridge and onto a road that is 27 feet above the bridge. the function h (x) = -x2-6x+27 gives the height, h, in feet, the rock travels in x seconds from the time it was thrown. when will the rock hit the road?

Answers (1)
  1. 17 April, 21:56
    5.12 sec
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