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Mathematics 12 Online
OpenStudy (anonymous):

The graph of a red oak tree is approximated by the function: G = -0.003(t)^3 + 0.137(t)^2 + 0.458t - 0.839 Where G is the height of the tree (in feet) and t (2 <= t <= 34) is it's age (in years) Use a graphing utility to graph the function: Extimate the age of the tree when it is growing most rapidly.

OpenStudy (anonymous):

About 15.22 years.

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