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Earn +20 ptsQ: How many 9 digit combinations using 0 through 9?
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What are the 5 digit combinations made using 1 through 9?
There are 59049 combinations, all the way from 11111, 11112 through 99998, 99999. There are too many to list here.
How many different 3 digit combinations can be made using numbers one through nine?
Through the magic of perms and coms the answer is 729
How many different four digit combinations are there of the numbers zero through nine and using one number twice in the combination?
There are 360 of them.
If using numbers 1 through 9 how many different 4 digit combinations can be made with no restrictions on order or repeats?
Each digit can appear in each of the 4 positions. There are 9 digits, therefore there are 9⁴ = 6561 such combinations.
How many 5 digit combinations are there in 1 through 35?
100
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