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7nadin3 [17]
3 years ago
5

A 4-digit password is a number that begins with a 3 and does not contain a zero or nine. If digits can be repeated, how many pos

sible passwords are there? A) 1,536. B) 512. C) 343
Mathematics
2 answers:
Maru [420]3 years ago
7 0
Well , we now the password would be :

3 _ _ _ 

and if there is no 0 and 9, the combination must be between 1 to 8

So the possibility of password would be :

8 x 8 x 8 = 512 possibilities

The answer is option B.

Hope this helps
Yuliya22 [10]3 years ago
6 0

Answer:

512

Step-by-step explanation:

8*8*8=512

hope that helps

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4 years ago
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ANTONII [103]

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<u>Solution:</u>

Given that, The sum of two numbers is 35  

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