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April 20, 2014

Homework Help: math ,correction

Posted by student on Sunday, July 15, 2007 at 4:20pm.

consider determining how many possible phone numbers are in an area code (repeated numbers allowed)

is this a combination, permutation or neither....

my answer neither

combination.

combination.

wouldn't it be neither because we are allowed to use repeated numbers....therefore it can't be combination or permutaition

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