Thursday

October 23, 2014

October 23, 2014

Posted by **Liz** on Tuesday, October 25, 2011 at 7:32pm.

You have 92 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side alongthe river, find the length and width of the plot that will maximize the area.

- Math -
**Steve**, Wednesday, October 26, 2011 at 5:20amIf length along river is y, and width =x,

2x+y = 92

a = xy = x(92-2x)

This is a parabola with roots 0,46.

So, maximum value is reached at x=23.

So, the pen is 23x46

- Math -
**Anonymous**, Thursday, April 12, 2012 at 11:44pmsam can paddle a canoe 30km upstream in 5 hours. the return ship takes 3 hours. find the speed of canoe in still water

**Answer this Question**

**Related Questions**

Algebra - You have 600 feet of fencing to enclose a rectangular plot that ...

College Algebra - You have 800 feet of fencing to enclose a rectangular plot ...

Math - You have 192 feet of fencing to enclose a rectangular plot that borders ...

Math - A farmer with 8000 meters of fencing wants to enclose a rectangular plot ...

college Algebra - A rectangular fence is to be built along a river using the ...

Algebra - Word Problems: 1. A farmer has 2400 feet of fencing and wants to fence...

Math - You have 200 feet of fencing to enclose a rectangular plot that borders ...

Math - The owner of the Rancho Grande has 3028 yd of fencing with which to ...

Math - The owner of the Rancho Grande has 3028 yd of fencing with which to ...

intermediate algebra - A farmer with 3000 feet of fencing wants to enclose a ...