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While hunting, Scott R shoots an arrow from the top of a 23 foot platform at a trophy buck according to the equation h = - 16t ^ 2 + 76t + 23 , where his the height in feet and t is the time in seconds. Sadly, his arrow misses and hits a tree. As Scott arrives, he finds that the arrow hit the tree at a height of 3 feet off the ground. How long did it take for the arrow to hit the tree.