document.write( "Question 727525: A farmer has 400 feet of fencing. He wants to fence off a rectangular field that borders a straight river (no fence along the river). What are the dimensions that will give him the largest area? Please check to see if I have the right answer. Thanks.\r
\n" ); document.write( "\n" ); document.write( "A=(400-2w)w
\n" ); document.write( "A= -2w^2+400w\r
\n" ); document.write( "\n" ); document.write( "-b/2a=-400/-4=100 width\r
\n" ); document.write( "\n" ); document.write( "l=400-2(100)
\n" ); document.write( "l=200\r
\n" ); document.write( "\n" ); document.write( "dimensions are 200ft by 100ft\r
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Algebra.Com's Answer #445124 by Alan3354(69443)\"\" \"About 
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A farmer has 400 feet of fencing. He wants to fence off a rectangular field that borders a straight river (no fence along the river). What are the dimensions that will give him the largest area? Please check to see if I have the right answer. Thanks.
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\n" ); document.write( "You're correct.
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