How many 4 letter words can be formed from the letters of the word mathematics?
tmipanthers wrote: Bunuel wrote: jatt86 wrote: 1) how many words can be formed by taking 4 letters at a time out of the letters of the word MATHEMATICS. There are 8 distinct letters: M-A-T-H-E-I-C-S.
How many 4 letter and number combinations are there?
There are 4! = 24 ways to do this. There are thus (14,950)(24) = 358,800 such sequences. If it’s the second situation (with repetition), then it’s just 26^4 = Dec 2011
Are all 3 letter usernames taken on Roblox?
There are no 3 character usernames available for taking anymore, haven’t been for years. There are no 3 character, 4 letter, or 4 letter with underscore remaining.
How many ways can you order 4 things?
But many of those are the same to us now, because we don’t care what order! So, the permutations have 6 times as many possibilites. (Another example: 4 things can be placed in 4! = 4 × 3 × 2 × 1 = 24 different ways, try it for yourself!)