Question

I can't figure this out:
http://roads.advancedacademics.com/contentserver/content/roadssection/277590/questions/9quiz5/9quiz5_q3.gif

A. .0238
B. 1,820
C. 2,380

Answer 1

\[\frac{16!}{4!12!}\]
\[\frac{16\times 15\times 14\times 13\times 12!}{4!12!}\]
\[\frac{16\times 15\times 14\times 13}{4\times 3\times 2}\]
\[2\times 5\times 14\times 3\]

Answer 2

r u sure?

Answer 3

pretty sure yes

Answer 4

\[\dbinom{16}{4}=\dbinom{16}{12}=1820\]

Answer 5

oh okay thnk u ;)