Thursday

July 31, 2014

July 31, 2014

Posted by **kieran** on Wednesday, September 26, 2012 at 9:54pm.

Dont really know Where to start with this one.

- Calculus -
**Steve**, Thursday, September 27, 2012 at 10:51amif the area enclosed is x by y, and the neighbor will pay for half the cost of the y side,

A = xy

C = 2x + 3/2 y

C = 2x + 3/2 (A/x)

dC/dx = 2 - 3A/(2x^2)

dC/dx = 0 when 3A/(2x^2) = 2

x = √(3A)/2

so, the lot is √(3A)/2 by 2√(A/3)

cost is thus √(3A) + 3/2 * 2√(A/3) = 2√(3A)

**Related Questions**

Calculus - A rectangular play area is to be fenced off in a person's yard and is...

Calculus - Mr. Phillips decides to have a completely fenced-in garden. It will ...

Calculus optimization problem - A rectangular dog run is to contain 864 ft ^2. a...

Calculus - Glenview Community College wants to build a rectangular parking lot ...

Math - Please help with this problem! Brandon wishes to fence in a rectangular ...

math - You have a 1200 foot roll of fencing and a large field. You want to make...

Algebra - A sports team is building a new stadium on a rectangular lot of land. ...

algebra1 - A sports team is building a new stadium on a rectangular lot of land...

Calculus - a college is planning to construct a new parking lot. the parking lot...

Calculus - a college is planning to construct a new parking lot. the parking lot...