Monday

July 28, 2014

July 28, 2014

Posted by **Robin** on Saturday, July 13, 2013 at 9:17am.

Width =

Length =

What is the greatest area pen that the rancher can make?

Area =

- Calculus -
**Steve**, Saturday, July 13, 2013 at 7:46pm2x+5y=14000

a = xy = x(14000-2x)/5

da/dx = 2800 - 4x/5

da/dx=0 when x = 3500

so, the pen is 3500x1400

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