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document.write( "A rectangular parking lot is 100 ft longer than it is wide. Determine the dimensions of the parking lot if it measures 500 ft diagonally. \r
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document.write( "b.
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document.write( "Three consecutive odd integers are such that the square of the third is 264 more than the square of the second. Find the three integers. \n" );
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Algebra.Com's Answer #119952 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! (x+100)^2+x^2=500^2 \n" ); document.write( "x^2+200x+10,000+x^2=250,000 \n" ); document.write( "2x^2+200x+10,000-250,000=0 \n" ); document.write( "2x^2+200x-240,000=0 \n" ); document.write( "2(x^2+100x-120,000)=0 \n" ); document.write( "2(x-300)(x+400)=0 \n" ); document.write( "x-300=0 \n" ); document.write( "x=300 is the width. \n" ); document.write( "300+100=400 is the length. \n" ); document.write( "Proof: \n" ); document.write( "400^2+300^2=250,000 \n" ); document.write( "160,000+90,000=250,000 \n" ); document.write( "250,000=250,000 \n" ); document.write( "------------------------------------------ \n" ); document.write( "let x, x+2 & x+4 be the 3 integers. \n" ); document.write( "(x+4)^2=(x+2)^2+264 \n" ); document.write( "x^2+8x+16=x^2+4x+4+264 \n" ); document.write( "8x-4x=264-16+4 \n" ); document.write( "4x=252 \n" ); document.write( "x=252/4 \n" ); document.write( "x=63 is the smallest integer. \n" ); document.write( "61+2=65 for the middle integer. \n" ); document.write( "61+4=67 is the largest integer. \n" ); document.write( "Proof: \n" ); document.write( "67^2=65^2+264 \n" ); document.write( "4,489=4,225+264 \n" ); document.write( "4,489=4,489 \n" ); document.write( " |