Question

21. Attending a Conference The Sarasota City Council plans

to send 2 of its 8 members to a conference in Hawaii. How
many different ways can the 2 members be selected?

Answer 1

28

Explanation:

So in order to get this answer you want to use the combination formula which is
`(n!)/((n-r)!r!)`

Now you want to use the numbers given to you in the problem which is ₈C₂ and plug those into the equation

so your going to have something looking like this
`(8!)/((8-2)!2!)` now if you have a calculator nearby and you plug in ₈C₂ your going to get 28 which is the answer.

hope this somewhat helps.