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2 years ago

9

Suppose that a "code" consists of 4 digits, none of which is repeated. (A digit is one of the 10 numbers 0, 1, 2, 3, 4, 5, 6, 7,

8, 9.) How many codes are
possible?

1 answer:

dalvyx [7]2 years ago

8 0

Answer:

5040

Step-by-step explanation:

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