document.write( "Question 346765: how many different pairs can be made from 5 different items \n" ); document.write( "

Algebra.Com's Answer #247933 by nyc_function(2741) $\"\"$ $\"About$

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5 factorial which is written 5! = 5 x 4 x 3 x 2 x 1 = 120 ways. \n" ); document.write( "

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