document.write( "Question 360405: A rectangular garden, 21m^2 in area, will be fenced to keep out rabbits and skunks. Find the dimensions that will require the least amount of fencing if a barn already protects one side of the garden.
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Algebra.Com's Answer #257393 by ankor@dixie-net.com(22740)\"\" \"About 
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A rectangular garden, 21m^2 in area, will be fenced
\n" ); document.write( " Find the dimensions that will require the least amount of fencing if a barn
\n" ); document.write( " already protects one side of the garden.
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\n" ); document.write( "Let x = the width
\n" ); document.write( "Let L = the length
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\n" ); document.write( "since the barn is one side the perimeter:
\n" ); document.write( "p = L + 2x
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\n" ); document.write( "The given area:
\n" ); document.write( "L * x = 21
\n" ); document.write( "L = \"21%2Fx\"
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\n" ); document.write( "Replace L in the perimeter equation with \"21%2Fx\"
\n" ); document.write( "p = \"21%2Fx\" + 2x
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\n" ); document.write( "Graph this on a graphing calc, find the minimum (p = the y axis)
\n" ); document.write( "\"+graph%28+300%2C+200%2C+-4%2C+10%2C+-10%2C+50%2C+%2821%2Fx%29+%2B+2x%29+\"
\n" ); document.write( "min: x = 3.24 meters is the width
\n" ); document.write( "L = \"21%2F3.24\"
\n" ); document.write( "L = 6.48 meters is the width
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\n" ); document.write( "Sumarize, a garden of 6.48 by 3.24 meter gives 21 sq/m using minimum fencing.
\n" ); document.write( "(About 13 meters of fencing)
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\n" ); document.write( "Check this, find the area with these dimensions
\n" ); document.write( "6.48 * 3.24 = 20.99 ~ 21 \n" ); document.write( "
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