document.write( "Question 108056This question is from textbook Introductoru & Intermediate Algebra
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document.write( ": The length of a rectangle exceeds twice its width by 3 inces. If the area is 10 square inches, find the rectangles dimensions. Round to the nearest tenth of an inch. \n" );
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Algebra.Com's Answer #78715 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! L=2W+3 \n" ); document.write( "L*W=10 \n" ); document.write( "(2W+3)*W=10 \n" ); document.write( "2W*2+3W-10=0 \n" ); document.write( "USING THE QUADRATIC EQUATON WE GET \n" ); document.write( " \n" ); document.write( "X=(-3+-SQRT[3^2-4*2*-10])/2*2 \n" ); document.write( "X=(-3+-SQRT[9+80])/4 \n" ); document.write( "X=(-3+-SQRT89)/4 \n" ); document.write( "X=(-3+-9.43)/4 \n" ); document.write( "X=(-3+9.43)/4 \n" ); document.write( "X=6.43/4 \n" ); document.write( "X=1.6 ANSWER FOR THE WIDTH. \n" ); document.write( "L=2*1.6 \n" ); document.write( "L=3.2+3 \n" ); document.write( "L=6.2 FOR THE LENGTH. \n" ); document.write( "PROOF \n" ); document.write( "1.6*6.2=10 \n" ); document.write( "10=10\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |