Wednesday

April 23, 2014

April 23, 2014

Posted by **joanna** on Wednesday, September 18, 2013 at 5:00am.

- math -
**Graham**, Wednesday, September 18, 2013 at 5:56amSome details of the question appear to be missing.

I'm assuming the pen is to be rectangular and further that you want to find the length and width that enclose the maximum possible area.

Let the width of the pen be x, so that the length is 20-3x the area (y) is:

y = 20 x -2 x^2

y' = 20 -4 x

Maximum area exists when y'=0

Solve for x.

**Related Questions**

algebra - please help me for this problem.im not good in math.the challenge ...

Accounting - Please check my answers. Identify each of the following as either ...

human relations - learning is generally considered a lasting change in behavior ...

Quantitative analysis - 3. A service station owner sells Firm-on-the-road tyres ...

Math - Please explain how to solve this equation with substitution: The owner of...

Legal - Can you direct me where I can find this information? I can't figure it ...

English - Can you check this sentence, please? Thank you. Imagine to be a ...

math - a store owner buys supplies from a vendor for $8,450. The terms of the ...

Math - A store owner buys supplies from a vender for 8,450. The terms of sale ...

Math - a store owner buys supplies from a vendor for $8,450. the terms of sale ...