document.write( "Question 549852: P(7,3) = ? \n" ); document.write( "
Algebra.Com's Answer #358137 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
(n!)/((n-r)!)\r
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\n" ); document.write( "\n" ); document.write( "(7!)/((7-3)!)\r
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\n" ); document.write( "\n" ); document.write( "(7!)/(4!)\r
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\n" ); document.write( "\n" ); document.write( "(7*6*5*4!)/(4!)\r
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\n" ); document.write( "\n" ); document.write( "7*6*5\r
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\n" ); document.write( "\n" ); document.write( "210\r
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\n" ); document.write( "\n" ); document.write( "So P(7,3) = 210
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