document.write( "Question 191724This question is from textbook Elementary and Intermediate Algebra
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document.write( ": Perimeter of a rectangle. The width of a rectangular playground
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document.write( "is 2x _ 5 feet, and the length is 3x _ 9 feet. Write a
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document.write( "polynomial P(x) that represents the perimeter and then
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document.write( "evaluate this perimeter polynomial if x is 4 feet. \n" );
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Algebra.Com's Answer #143834 by RAY100(1637)![]() ![]() ![]() You can put this solution on YOUR website! per = 2l + 2w = 2(3x-9) + 2(2x-5) = 6x-18 +4x -10 = 10x-28 \r \n" ); document.write( "\n" ); document.write( "for x=4, per = 10 (4) -28 = 12\r \n" ); document.write( "\n" ); document.write( "check 3x-9 = 3(4) -9 = 3\r \n" ); document.write( "\n" ); document.write( " 2x-5 = 2(4)-5 = 3\r \n" ); document.write( "\n" ); document.write( "per = 2(3) +2(3) = 12 ok \n" ); document.write( " |