Ask your own question, for FREE!
Mathematics 35 Online
OpenStudy (anonymous):

28c15

OpenStudy (anonymous):

that is n! /r! * n-r! 28! / 15! * 13! =37442160

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
Ylynnaa: This was long time ago lmk if u fw itud83dude1d
3 minutes ago 11 Replies 1 Medal
abound: Wow question cove really fell off
37 minutes ago 6 Replies 1 Medal
ayden09: chat i love black pink hehe i like jones to
6 minutes ago 20 Replies 2 Medals
kamani7676: help
21 hours ago 5 Replies 1 Medal
kamani7676: Help
21 hours ago 76 Replies 2 Medals
sigmasimmymind: need help
1 hour ago 10 Replies 2 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!