1
575757
Two make combinations you would take 2x1=2 combinations only
There are 125970 combinations and I am not stupid enough to try and list them!
the options i can see are: 1111111111 111111112 11111122 1111222 112222 22222 there are 6 combinations but i will need to reformulate to work out how many permutations of these 6 combinations there are
Their is 25 combinations
There are 210 4 digit combinations and 5040 different 4 digit codes.
if its not alphanumeric, 999999 variations
1
Number of 7 digit combinations out of the 10 one-digit numbers = 120.
Nitrogen and oxygen can share electrons in many different ways; some observing the octet rule and some not. For this reason, prefixes are necessary to keep track of all the covalent combinations.
you cam make 36 different combinations.Ans 2.If you roll one dice twice, there are 36 combinations, if and only if you count 1,2 as different from 2,1.If you are rolling two dice (at once) there are only 21 different combinations !
221,184 Different Combinations :)
10,000
15
575757
5,040