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Mathematics 16 Online
OpenStudy (anonymous):

Find the number of permutations of the first 9 letters of the alphabet taking 6 letters at a time. 60, 480-my choice am i right? 54,320 1034 84

ganeshie8 (ganeshie8):

Very right !!

OpenStudy (anonymous):

calculator exercise http://www.wolframalpha.com/input/?i=9P6

OpenStudy (anonymous):

oh and yes

ganeshie8 (ganeshie8):

9P6 = `9` x `8` x `7` x `6` x `5` x `4`

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