Friday

March 27, 2015

March 27, 2015

Posted by **yareli** on Saturday, November 30, 2013 at 2:54am.

- calculus (optimization) -
**Steve**, Saturday, November 30, 2013 at 6:20amxy=384

so, y = 384/x

f = 2x+3y = 2x + 1152/x

df/dx = 2 - 1152/x^2

min f is when df/dx=0, at x=24

So, the field is 24x16

f = 48+48=96

as usual in these problems, the fencing is divided equally among lengths and widths.

**Answer this Question**

**Related Questions**

Math - A rectangular study area is to be enclosed by a fence and divided into ...

Calculus 1 - A rectangular field is enclosed by a fence and seperated into two ...

Grade 11 Math - A rectangular dog run is to be enclosed by a fence and then ...

shortest fence - this is my last question from applications of derivatives! A ...

math - i am having serious optimization problems. i don't get it!!! plz help. a ...

calculus - A 384 square meter plot of land is to be enclosed by a fence and ...

area and perimeter - a farmer wishes to build a fence around a rectangular field...

precalculus - A rectangular field is to be enclosed by a fence and divided into...

Calc-optimization - Ann wants to build an enclosed area behind her house. One ...

Calculus - A rectangular field is to be enclosed by a fence and divided into ...