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Mathematics 21 Online
OpenStudy (anonymous):

A password consists of four different letters of the alphabet. How many different possible passwords are there? Select one: a. 104 b. 14,950 c. 358,800 d. 456,976

OpenStudy (anonymous):

Are you trying to break into someone's safe? O.o lol jk the answer would be c

OpenStudy (dan815):

okay so 26 choose 4 * 4!

OpenStudy (dan815):

how can u choose 4 differnt lettesr from 26.. and then 4! ways to arrange each of those chosen 4 letters

OpenStudy (anonymous):

I don't think she's paying attention.

OpenStudy (swissgirl):

Ok I was thinking that there are 26 options in the first number. 25 options for the second number of the password 24 for the third and 23 for the fourth So that is 26*25*24*23

OpenStudy (anonymous):

How Did You Get C. @TSwizzle

OpenStudy (anonymous):

Same way swissgirl did.

OpenStudy (anonymous):

Oh Alright I've Got It Thanks :)

OpenStudy (anonymous):

Yup :)

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