SOLUTION: 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 i

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons -> SOLUTION: 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 i      Log On


   



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?
A) 0.5 B)1.5 C)6.2 D)7.2 E) 10.5

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Replace d with 10.