document.write( "Question 171926: A bakery sells cheesecakes having diameters 6 in, 8 in, 10 in; all the same height. Suppose that they cost $8, $12, and $20 respectively.\r
\n" ); document.write( "\n" ); document.write( "A. Which size gives you the most cheesecake per dollar?
\n" ); document.write( "please explain.\r
\n" ); document.write( "\n" ); document.write( "B. Find a quadratic equation that models how the ocst of a cheesecake varies with diameter.\r
\n" ); document.write( "\n" ); document.write( "I would appreciate any help I can get.
\n" ); document.write( "Please help soon!
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Algebra.Com's Answer #127024 by Mathtut(3670)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "A. \"A=%28pi%29r%5E2\"\r
\n" ); document.write( "\n" ); document.write( "6in\"A=%28pi%293%5E2\"=\"9%28pi%29\"sq inches
\n" ); document.write( "8in \"A=%28pi%294%5E2\"=\"16%28pi%29\"sq inches
\n" ); document.write( "10in\"A=%28pi%295%5E2\"=\"25%28pi%29\"sq. inches
\n" ); document.write( ":
\n" ); document.write( "price per sq in:
\n" ); document.write( ":
\n" ); document.write( "6in \"9%28pi%29%2F8=9%28pi%29%2F8=highlight%281.125%28pi%29%29\"per sq in
\n" ); document.write( "8in \"16%28pi%29%2F12=4%28pi%29%2F3=highlight%281.33%28pi%29%29\"per sq in
\n" ); document.write( "10in\"25%28pi%29%2F20=5%28pi%29%2F4=highlight%281.25%28pi%29%29\"per sq in
\n" ); document.write( ":
\n" ); document.write( "\"6\" inch pie gives you the most bang for your buck\r
\n" ); document.write( "\n" ); document.write( ":
\n" ); document.write( "B. let T be total cost of pie, C= cost / sq in
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\n" ); document.write( "\"C=%28pi%29r%5E2%2FT\".......where r is the radius of the pie
\n" ); document.write( ":
\n" ); document.write( "\"%28pi%29r%5E2-TC=0\"
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