document.write( "Question 115021: I'm not sure how to do this one. Can you please help me with it?\r
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document.write( "The length of a rectangle is 2 meters longer than the width. If the area is 10 square meters, find the rectangle's dimensions. Round to the nearest tenth of a meter. \n" );
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Algebra.Com's Answer #83656 by checkley71(8403) ![]() You can put this solution on YOUR website! L=W+2 \n" ); document.write( "10=L*W \n" ); document.write( "10=(W+2)W \n" ); document.write( "10=W^2+2W \n" ); document.write( "W^2+2W-10=0 \n" ); document.write( "USING THE QUADRATIC EQUATION WE GET: \n" ); document.write( " \n" ); document.write( "W=(-2+-SQRT[2^2-4*1*-10])/2*1 \n" ); document.write( "W=(-2+-SQRT[4+40])/2 \n" ); document.write( "W=(-2+-SQRT44)/2 \n" ); document.write( "W=(-2+-6.633)/2 \n" ); document.write( "W=-2+6.633)/2 \n" ); document.write( "W=4.633/2 \n" ); document.write( "W=2.3165 ANSWER FOR THE WIDTH. \n" ); document.write( "L=2.3165+2=4.3165 ANSWER FOR THE LENGTH. \n" ); document.write( "PROOF \n" ); document.write( "2.3165*4.3165=10 \n" ); document.write( "10~10 \n" ); document.write( " \n" ); document.write( " |