document.write( "Question 134085: Hi ,
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\n" ); document.write( "I was hoping you could help me with two more question. I have tried to find a formula but I can't and I'm wasting too much time. My class is tomorrow evening.
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\n" ); document.write( "1. Determine two numbers whose sum is 15 and the sum of its square roots is 137. I know the answer is 11 and 4 but what formula do I use.
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\n" ); document.write( "7. The perimeter of a rectangle is 20 inches and its area is 24 inches squared. Determine the lengths of its sides. I know that the sides are 6\" and 4\" but I need to show my work. I just used logic to find the numbers.
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\n" ); document.write( "8. The perimeter of a rectangle es 24cm and its area is 32 cm squared. Find the lengths of its sides. Again I know that the answer is 8cm and 4cm but what is the formula?
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\n" ); document.write( "I really appreciate the help
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\n" ); document.write( "Thanks,
\n" ); document.write( "Anne
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Algebra.Com's Answer #98050 by Ganesha(13)\"\" \"About 
You can put this solution on YOUR website!
1
\n" ); document.write( "x+y=15 (1)and x^2+y^2 =137
\n" ); document.write( "x+y)^2 = 15^=225. 2xy = 225-137= 88
\n" ); document.write( "x-y)^2 =137-88 = 49, Hence
\n" ); document.write( "x-y=7 (2). from (1) and (2) 2x=22 x=11 2y=8 y=4\r
\n" ); document.write( "\n" ); document.write( "The other 2 are similar please do it similarly.
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