how many possible 5 digit zip codes are there if numbers can't be repeated?

how many ways can 7 different items be arranged in a single line? (is that 7 factorial?)

how many ways can i select 5 different objects out of 12 objects total?

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- Mar 5th 2009, 01:27 AMtheclericQuick stat/factoral questions? Possible explanation?
how many possible 5 digit zip codes are there if numbers can't be repeated?

how many ways can 7 different items be arranged in a single line? (is that 7 factorial?)

how many ways can i select 5 different objects out of 12 objects total? - Mar 5th 2009, 03:38 AMmr fantastic
- Mar 5th 2009, 03:47 AMthecleric
yeah zip codes are example of permutations...wikipedia solved that one for me. about third one...

bad wording,

how about:

if you have 12 flowers, how many different ways can you select 5 of them for display - Mar 5th 2009, 03:51 AMmr fantastic
- Mar 5th 2009, 03:55 AMthecleric
lol sorry, but 12 to the power of 5? or 5 to the power of 12?

- Mar 5th 2009, 04:19 AMmr fantastic
Read section 2: Permutation - Wikipedia, the free encyclopedia

I had thought the notation would be familiar .... - Mar 5th 2009, 04:34 AMthecleric
oops didn't see the older notation part...thanks