document.write( "Question 612215: A bookself has space for 6 books. If 8 different books are available, how many different arrangements can be made on the shelf?\r
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document.write( "My answer was 28. I found this by using the following combination:
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document.write( "(8 nCr 6) = 28
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document.write( "I was marked wrong, what is the correct way to do this problem and how can i avoid this mistake in the future? \n" );
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Algebra.Com's Answer #385321 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A bookself has space for 6 books. If 8 different books are available, how many different arrangements can be made on the shelf? \n" ); document.write( "--- \n" ); document.write( "Ans: 8P6 = 8!/(8-6)! = 8*7*6*5*4*3 = 20160 \n" ); document.write( "============================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=============== \n" ); document.write( " |