6C2 ?????????????????????

Mathematics
Tutor: None Selected Time limit: 1 Day

6C2

a.15

b.720

c.1

d.30

Apr 27th, 2015

Are the 6 and the two subscript?  

Apr 27th, 2015

yes

Apr 27th, 2015

So if so, this is a combination.  It means "six combination 2" it can be written like this instead: 

(6

 2)

Imagine those as big parentheses.  We will get 15.  Do you need a step by step?

Apr 27th, 2015

Here is a great little website for future reference or confusion.  https://www.mathsisfun.com/combinatorics/combinations-permutations.html

Apr 27th, 2015

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