document.write( "Question 914250: A rancher has 840 feet of fencing to construct 6 corrals. FInd the dimensions that maximize the enclosed area. What are the dimensions? What are the larger dimensions, smaller dimensions and area? \n" ); document.write( "
Algebra.Com's Answer #554958 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
Does more information come with this question? Six separate corrals, not connected to each other? \r
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\n" ); document.write( "\n" ); document.write( "Maybe x and y, dimensions of each corral, all corrals congruent. ASSUMING rectangle shape.\r
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\n" ); document.write( "\n" ); document.write( "The fencing is the sum of the perimeters. \"6%282x%2B2y%29=840\"
\n" ); document.write( "\"12%28x%2By%29=840\"
\n" ); document.write( "\"x%2By=70\"\r
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\n" ); document.write( "\n" ); document.write( "Total area, \"A=6xy\"\r
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\n" ); document.write( "\n" ); document.write( "Substitute for either variable, choosing y, in the area equation:
\n" ); document.write( "\"A=6x%2870-x%29\"
\n" ); document.write( "Do some steps,
\n" ); document.write( "\"A=-6x%5E2%2B420\", but maybe not necessary in that form.\r
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\n" ); document.write( "\n" ); document.write( "A is a parabola opening downward having a vertex as a maximum point, which is what you want to solve for. Find the roots!
\n" ); document.write( "\"A=0=6x%2870-x%29\"
\n" ); document.write( "\"-6x%28x-70%29=0\"
\n" ); document.write( "Roots are 0 and 70.
\n" ); document.write( "The vertex will be for the exact middle of these roots, which will be \"highlight%28x=35%29\".
\n" ); document.write( "Notice that according to the earlier found equation from perimeter, x+y=70, which means that also \"highlight%28y=35%29\".
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\n" ); document.write( "Each corral will be a square with side 35 feet.\r
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\n" ); document.write( "\n" ); document.write( "Based on the questions part of what you posted, some of the description is missing and so maybe the answer I found does not fit what you really were given. I could only assume that your six corrals would be rectangles and not connected to each other. Otherwise, give the complete problem description.
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