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January 26, 2015

January 26, 2015

Posted by **Anonymous** on Tuesday, June 18, 2013 at 4:35pm.

wood side ft

steel side ft

- Calculus -
**Steve**, Tuesday, June 18, 2013 at 6:00pmassuming the fenced area is rectangular,

Let steel side be x, wood side be y

xy = 917, so

y = 917/x

The cost of the fence is thus

c(x) = 5x + 2*7(917/x)

Then find where c'(x) = 0

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