Since this is a combination not a permutation problem, (order does not matter) you should use the "n choose k" formula.
C=n!/(k!(n-k)!) where C is the number of unique combinations, n equals the total number of possible choices and k equals the specific number of choices. In this case:
C=9!/(4!(9-4)!)
C=9!/(4!5!)
C=362880/(24*120)
C=362880/2880
C=126
So there are 126 unique ways to pick 4 people from a group of 9 people.
G(x)=x²-x
g(2)=2²-2
g=4-2
g=2
Answer:The answer should be D based on the data given.
Step-by-step explanation:
Answer:
6+2-3
Becuz u immediately can do the problem with lower numbers which makes it easier than adding big numbers like 8+36
