SOLUTION: The access code for a car's security system consists of four digits. Each digit can be 0 through 9. How many access codes are possible if:
A) each digit can be used only once and
Algebra.Com
Question 284076: The access code for a car's security system consists of four digits. Each digit can be 0 through 9. How many access codes are possible if:
A) each digit can be used only once and not repeated
B)each digit can be repeated
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
10*9*8*7=5,040 ANS. WITHOUT REPEATS.
10^4=10,000 ANS. WITH REPEATS.
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