Ask your own question, for FREE!
Mathematics 7 Online
OpenStudy (anonymous):

Babies born in the United States must have a Social Security card issued before their third birthday. How many different cards could be issued using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9, if each card needs a nine-digit number and the digits can only be used once per card? Who ever answers this get one million dollars.

OpenStudy (usukidoll):

social security? oy...that fund got raided by losers in Congress

OpenStudy (usukidoll):

lol. I'm a pegasister @bibby so :P

OpenStudy (usukidoll):

and speaking of Rarity, the plush is expensive to buy on amazon. too many people buying her D:

OpenStudy (bibby):

I got a good one of derpy with a "puppet hand" slit

OpenStudy (usukidoll):

I thought custom plushies get a DMCA takedown in return

OpenStudy (bibby):

I did custom orders on brony forums hehe...

OpenStudy (anonymous):

This question is written very badly. If it's a 9 digit number, you can go all the way from 000000001 to 999999999. Unless the question means that each digit can only be used once for every number, so we can't have the 000000001 and anything with repeating numbers, but I don't think that's the case.

OpenStudy (usukidoll):

this is probability... but oh man I had a junk instructor so I switched classes...otherwise I would've answered it by now

OpenStudy (usukidoll):

I think it's 9 factorial a.k.a 9!. Don't quote me on it

OpenStudy (bibby):

I'll sign off on that. There are 9 possibilities for the 1st position 8 for the next etc.

OpenStudy (usukidoll):

9 X 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1

OpenStudy (anonymous):

It makes no sense though. The answer would be 362880 different cards, but if that were the case we'd run out of social security numbers.

OpenStudy (usukidoll):

like the license plate question. from 0-9 no numbers repeating.

OpenStudy (usukidoll):

social security is gonna be targeted by republican thugs

OpenStudy (bibby):

this (wo)manchild is a prime example of the failure of bipartisanship

OpenStudy (usukidoll):

^ this cat is an example of obamacare failing XD

OpenStudy (bibby):

g'day usuki \o

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!