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 June 16th, 2009, 02:01 PM #1 Newbie   Joined: Feb 2009 Posts: 8 Thanks: 0 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
 June 16th, 2009, 02:45 PM #2 Guest   Joined: Posts: n/a Thanks: 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: $26^{3}\cdot 10^{2}$
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: $26^{3}\cdot 10^{2}$

ty is the first one !

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