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June 16th, 2009, 02:01 PM   #1
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Algebra 2 probability

Hii !! i have a problem .. if i want to do a "code" with 3 letters of the vocabulary and 2 numbers 0 to 9 .. how can i do this ..
I think I can do this by multiplying 25 or 26x25 and with the number 10 or 9 i dont remember help me
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June 16th, 2009, 02:45 PM   #2
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Re: Algebra 2 probability

Do you mean how many different codes can you construct from 3 letters and two digits?.

No repetition allowed or can they repeat?.

No repeats, there are 26*25*24*10*9

If repeats allowed:
 
June 16th, 2009, 03:36 PM   #3
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Re: Algebra 2 probability

Quote:
Originally Posted by galactus
Do you mean how many different codes can you construct from 3 letters and two digits?.

No repetition allowed or can they repeat?.

No repeats, there are 26*25*24*10*9

If repeats allowed:

ty is the first one !
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