Question

how many 5 digit (numerical) passwords are possible for the school email system if the first digit cannot be 0?​

Answer 1

Answer:

9*10*10*10*10

Step-by-step explanation:

well since the first digit cannot be 0 and there are a total of 10 digits the first place will have only 9 possibilites, the remaining all will have 10 possibilities

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Answer 2

9*10*10*10*10

hope it helps