Question

There are 20 students on the school's student council. A special homecoming dance committee is to be formed by randomly selecting 6 students from student council. How many possible committees can be formed?

Answer 1

The number of combinations of 20 students selected 6 at a time is:
\[\large C(20, 6)=\frac{20!}{6!14!}=\frac{20\times19\times18\times17\times16\times15}{6\times5\times4\times3\times2\times1}=you\ can\ calculate\]

Answer 2

Ah thank you! Ill have some more coming up later if you want to help with them too.