Friday

November 21, 2014

November 21, 2014

Posted by **Taylor** on Wednesday, February 29, 2012 at 12:51am.

- Math -
**Steve**, Wednesday, February 29, 2012 at 12:17pmIf the width is w, then the length is 42-2w. So, the area is

y = w(42-2w)

y = -2w^2 + 42w

this is just a parabola, and y reaches its maximum when w = -42/-4 = 10.5

so, the pasture is 10.5 x 21. Area = 220.5

If we want just 220 m^2, then the field is 11x20

**Answer this Question**

**Related Questions**

Algebra 2 - 2. a farmer has 400 meters of fence with which to enclose a portion ...

Algebra 2 - a farmer has 400 meters of fence with which to enclose a portion of ...

math - a farmer has 400 meters of fence with which to enclose a portion of land...

Algebra 2 - a farmer has 400 meters of fence with which to enclose a portion of ...

Geomtry - A farmer has 1000 meters barbed wire with which he is to fence off ...

Math (Quadratic Equations) - A field is bound on one side by a river. A farmer ...

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

math - a farmer is building a fence around his yard. one side of the fence will ...

math - a farmer is building a fence around his yard. one side of the fence will ...

Applied Math- Gr.11 - A farmer wants to enclose three sides of a rectangular ...