document.write( "Question 49662This question is from textbook
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document.write( ": please help me with this problem: One on one: Find two positive real numbers that differ by 1 and have a product of 1. and the next one is Swimming pool design: an architect has designed a motel pool within a rectangular area that is fenced on three sides. If she uses 60 yards of fencing to enclose an area of 352 square yards, then what are the dimensions marked L and W. Assume that L is greater than W. \n" );
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Algebra.Com's Answer #32976 by venugopalramana(3286)![]() ![]() You can put this solution on YOUR website! please help me with this problem: One on one: Find two positive real numbers that differ by 1 and have a product of 1. \n" ); document.write( "LET ONE NUMBER =X...THE OTHER NUMBER IS X-1 \n" ); document.write( "THEIR PRODUCT=X(X-1)=1 \n" ); document.write( "X^2-X-1=0 \n" ); document.write( "X={1+SQRT(1^2+4*1*1)}/2={1+SQRT(5)/2] \n" ); document.write( "HENCE THE 2 NUMBERS ARE {SQRT(5)+1}/2 AND {SQRT(5)-1}/2 \n" ); document.write( "and the next one is Swimming pool design: an architect has designed a motel pool within a rectangular area that is fenced on three sides. If she uses 60 yards of fencing to enclose an area of 352 square yards, then what are the dimensions marked L and W. Assume that L is greater than W. \n" ); document.write( "AREA =LW=352 \n" ); document.write( "FENCING LENGTH =L+W+L=2L+W=60 \n" ); document.write( "W=60-2L \n" ); document.write( "AREA=L(60-2L)=352 \n" ); document.write( "60L-2L^2=352 \n" ); document.write( "L^2-30L+176=0 \n" ); document.write( "(L-22)(L-8)=0 \n" ); document.write( "L=22.... \n" ); document.write( "W=60-2L=60-44=16 \n" ); document.write( " |