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jacktran05
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$1.00 Algebra 2

  • From Mathematics: Algebra
  • Closed, but you can still post tutorials
  • Due on Mar. 10, 2009
  • Asked on Mar. 11, 2009 at 01:58:59AM
Q:
a rectangular pen is made with 100 m of fencing on three sides. The fourth side is stone wall. Find the greatest possible area of such as enclosure.
 


   
   
   
   
 
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rineet
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$0.25 Answer with Complete Explanation

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  • Posted on Mar. 11, 2009 at 02:02:37AM
A:
Preview: ... = length X width. <br><br>If we let the short sides of the fence be of length "x" then we can let the long side be of length 10 ...

The full tutorial is about 132 words long .
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shri21
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$1.00 Neat, Complete and Step-by-step Solution

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  • Posted on Mar. 11, 2009 at 02:06:22AM
A:
Preview: ... 0 - 2y)y = 100y - 2y^2<br><br>For greatest area, dA/dy ...

The full tutorial is about 63 words long .
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$0.25 Cheapest Answer with Explanation

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  • Posted on Mar. 11, 2009 at 02:07:42AM
A:
Preview: ... he short sides of the fence be of length "x" then we can let the long side be of length 100-2x since there's only 100m of material to use. ...

The full tutorial is about 146 words long .
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alephzero314
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$1.00 Complete solution with an explanation for each step

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  • Posted on Mar. 11, 2009 at 08:16:54AM
A:
Preview: ... attained by the parabola.[Since the number multiplying l^2 is negative, it opens downwards, so it attains some particular maximum height].<br><br>You can find the parabola's maximum point by finding it's vertex. To do that, complete the square:<br><br>A ...

The full tutorial is about 210 words long .
   
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