document.write( "Question 1198363: Jonathan has 1000 feet of fencing available to fence in the rectangular yard next to his house. What is the maximum enclosed area if the side along his house does NOT need to be fenced?\r
\n" ); document.write( "\n" ); document.write( "Which of the following is correct?\r
\n" ); document.write( "\n" ); document.write( "A) 6,250 square feet
\n" ); document.write( "B) 1,250 square feet
\n" ); document.write( "C) 62,500 square feet
\n" ); document.write( "D) 125,000 square feet
\n" ); document.write( "E) 625 square feet
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Algebra.Com's Answer #831954 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
1000ft fencing: 3-sided
\n" ); document.write( "A = x(1000-2x)
\n" ); document.write( "A' = 1000 - 4x
\n" ); document.write( " Maximize: 4x = 1000
\n" ); document.write( " x = 250ft
\n" ); document.write( "A = 250ft*500ft = 125,000ft^2
\n" ); document.write( "Agree: 500ft is a hefty number for a length of a house.
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