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nataly862011 [7]
3 years ago
10

How many possible combinations of 4 numbers 1-9?

Mathematics
1 answer:
beks73 [17]3 years ago
5 0

1.       There are 10, 000 combinations, you have 10 choices for the four digit and there are 10 x 10 x 10 x 10 which is 4-digit combination from 1-9. This is called combinations; the calculation comes out to 10^4. 

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The graph (A) in the picture represents the solution to the inequality, option (A) is correct.

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