document.write( "Question 923822: The perimeter of a rectangular garden is 22.5m...The area is 12.5m2 Find the dimensions of the garden. \n" ); document.write( "
Algebra.Com's Answer #560338 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
\n" ); document.write( "Hi,
\n" ); document.write( " .
\n" ); document.write( "The perimeter of a rectangular garden is 22.5m...The area is 12.5m^2
\n" ); document.write( "L + w = 11.25
\n" ); document.write( "L = (11.25-w)
\n" ); document.write( "A = Lw
\n" ); document.write( "(11.25-w)w = 12.5m^2
\n" ); document.write( "w^2 - 22.5w + 12.5 = 0
\n" ); document.write( "\"w+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"
\n" ); document.write( "the dimensions of the garden: 21.93m by 0.57m
\n" ); document.write( "\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "
Solved by pluggable solver: SOLVE quadratic equation with variable
Quadratic equation \"ax%5E2%2Bbx%2Bc=0\" (in our case \"1x%5E2%2B-22.5x%2B12.5+=+0\") has the following solutons:
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\n" ); document.write( " \"x%5B12%5D+=+%28b%2B-sqrt%28+b%5E2-4ac+%29%29%2F2%5Ca\"
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\n" ); document.write( " For these solutions to exist, the discriminant \"b%5E2-4ac\" should not be a negative number.
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\n" ); document.write( " First, we need to compute the discriminant \"b%5E2-4ac\": \"b%5E2-4ac=%28-22.5%29%5E2-4%2A1%2A12.5=456.25\".
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\n" ); document.write( " Discriminant d=456.25 is greater than zero. That means that there are two solutions: \"+x%5B12%5D+=+%28--22.5%2B-sqrt%28+456.25+%29%29%2F2%5Ca\".
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\n" ); document.write( " \"x%5B1%5D+=+%28-%28-22.5%29%2Bsqrt%28+456.25+%29%29%2F2%5C1+=+21.9300046816469\"
\n" ); document.write( " \"x%5B2%5D+=+%28-%28-22.5%29-sqrt%28+456.25+%29%29%2F2%5C1+=+0.569995318353087\"
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\n" ); document.write( " Quadratic expression \"1x%5E2%2B-22.5x%2B12.5\" can be factored:
\n" ); document.write( " \"1x%5E2%2B-22.5x%2B12.5+=+1%28x-21.9300046816469%29%2A%28x-0.569995318353087%29\"
\n" ); document.write( " Again, the answer is: 21.9300046816469, 0.569995318353087.\n" ); document.write( "Here's your graph:
\n" ); document.write( "\"graph%28+500%2C+500%2C+-10%2C+10%2C+-20%2C+20%2C+1%2Ax%5E2%2B-22.5%2Ax%2B12.5+%29\"
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