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Free_Kalibri [48]
3 years ago
11

Kelly has always used "P4ssw0rd” as her password on her online accounts. Why should she change this? Check all that apply.

Computers and Technology
2 answers:
erastovalidia [21]3 years ago
5 0

Answer:

it could be easily guessed

Y_Kistochka [10]3 years ago
3 0
All of them except C
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Answer:

<u>720</u> possible PIN can be generated.

Explanation:

To calculate different number of orders of digits to create password and PIN, we calculate permutation.

Permutation is a term that means the number of methods or ways in which different numbers, alphabets, characters and objects can arranged or organized. To calculate the permutation following formula will be used:

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So in question we need to calculate

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where

n= 10   (0-9 means total 10 digits)

r= 3     (PIN Consist of three digits)

So by using formula

10P3 = 10!/(10-3)!

        =10!/7!

        = 10x9x8x7!/7!

        = 10x9x8

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