Homework Help: discrete math

Posted by kennedy on Monday, September 15, 2008 at 3:10pm.

if you have 5 signal flags and can send messages by hoisting 1 or more flags on a flagpole, how many messages can you send? please help!!

discrete math - bobpursley, Monday, September 15, 2008 at 4:11pm
I am wondering if the signal flags are different? If they are, then
5! + 5*4*3*2 + 5*4*3 + 5*4 + 5

check my thinking

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