document.write( "Question 564642: Using the letters A B C D E, (letters may not occur more than once) how many three-letter sequences are possible?
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document.write( "How many four-letter and how many five-letter sequences? \n" );
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Algebra.Com's Answer #365401 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Using the letters A B C D E, (letters may not occur more than once) \n" ); document.write( "how many three-letter sequences are possible?:::5*4*3 = 60 \n" ); document.write( "---------- \n" ); document.write( "How many four-letter:::5*4*3*2 = 120 \n" ); document.write( "---------- \n" ); document.write( "how many five-letter sequences?:::5! = 5*4*3*2*1 = 120 \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "===================== \n" ); document.write( " \n" ); document.write( " |