Question: Suppose that a code consists of5 digits, none of which is repeated. (A digit is one of the10 numbers0 ,1 ,2 ,3 ,4 ,5 ,6
Suppose that a "code" consists of5
digits, none of which is repeated. (A digit is one of the10
numbers0
,1
,2
,3
,4
,5
,6
,7
,8
,9
.) How many codes are possible?
(If necessary, consult alist of formulas.)
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