Answer:
f=100
Step-by-step explanation:
9514 1404 393
Answer:
120
Step-by-step explanation:
The number of permutations of 5 things taken 4 at a time is 120.
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There are 5 odd digits. You want to choose 4 of them, then arrange those 4 in all possible ways. There are 5·4·3·2 = 120 ways to do that.
120 4-digit codes can be formed using odd digits with no repetition.
6×9=57
Step-by-step explanation:
get a multiplication chart and find the answer
Answer:
100000010000000
Step-by-step explanation:
10000000+10000000000000=100000010000000