Ask a New Question
Search
Asked by
amal
find the number of permutations of 5 out of 9. then find 6 out of 6
Answers
Answers
Answered by
Damon
n!/(n-r)! = 9!/4! = 9*8*7*6*5 = 15120
6!/0! = 6*5*4*3*2 = 720
because 0! is defined as 1
Related Questions
Related
how many permutations are there for 4 numbers (0,2,3 and 5) adding up to 25 in 8 turns?
how many permutations are there of the following word. mathematics
find the permutations one person select 4 books, 2 cds, 1 dvd from 10 books, 20 cds, and 5 dvd
How many permutations σ of the set {1,2,…,15} are there such that σ(1)=1,∣σ(n)−σ(n−1)∣≤2 for 2≤n≤15?...
How many different permutations can be created when anne, Becky,Carlo, dan and Esi line up to buy mo...
26. The law of permutations, combinations, and filling slots are the counting rules used to (a) det...
Find the number of permutations of 5 CDs if you have a total of 23 CDs
Find the number of permutations of letter of the word KAPIL (i) When P is always in the middle....
How many permutations of the letters in the name BARBARA are there?
Find the number of permutations that can be had form the letters of the word ‘OMEGA’ (i) O and A oc...