document.write( "Question 551007: The thickness of concrete that lines a swimming pool is a function of the depth of the pool. If d represents the depth, in feet, of the pool and t(d) represents the thickness, in inches, of the concrete, then t(d)=\"%281%2F12%29%28d%5E2-2d%2B6%29\". Of the following, which is the closest approximation to the thickness, in inches, of the concrete at a depth of 10 feet?
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Algebra.Com's Answer #359613 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
Replace d with 10.\r
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