document.write( "Question 1148118: 10. Compute P(5,2) and C(5,2). Compare and explain your answers. Why are they different \n" ); document.write( "

Algebra.Com's Answer #769509 by ikleyn(52873) $\"\"$ $\"About$

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document.write( "P(5,2) = 5*4 = 20  is the number of all ORDERED pairs of 5 different items.\r\n" );
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document.write( "C(5,2) =  = 10  is the number of all unordered pairs of 5 different items.\r\n" );
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document.write( "So, these quantities count DIFFERENT entities.\r\n" );
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document.write( "Therefore, there is nothing unexpected that they are different.\r\n" );
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