1. Given a group of n people. There are C(n, r) ways of forming groups of r out of n.
2. Where C(n, r)=

3. For example, given {Andy, John, Julia}. We want to pick 2 people to give a gift: we can pick {(Andy, John), (Andy, Julia), (John, Julia)}, so there are 3 ways. So we can list and count.
4. Or we could do this with the formula C(3, 2)=

5. C(8, 6)=

So there are C(8,6)=28 ways of chosing 6 out of 8 people to form the subcommittees. <span />
Answer:
The value of the digit 6 in 23,640 is ? Times ? Than the value of the 6 in 167892
Answer:
You didnt show the drop down. Just add 3 units to each point tho if u want to solve it.
Step-by-step explanation:
Answer:
donda esta laletcha
Step-by-step explanation:
hola
Answer:
It cannot be written as a fraction
Step-by-step explanation:
The square root of 2 is "irrational" (cannot be written as a fraction) ... because if it could be written as a fraction then we would have the absurd case that the fraction would have even numbers at both top and bottom and so could always be simplified.