Ask your own question, for FREE!
Mathematics 50 Online
OpenStudy (anonymous):

How many combinations are there of the five letters j, k, l, m, and n using four letters at a time

OpenStudy (anonymous):

\[nCr = \frac{n!}{(n - r)!r!}\]\[5C4 = \frac{5!}{(5 - 4)!4!}\]

OpenStudy (anonymous):

\[5C4 = \space?\]

OpenStudy (anonymous):

whattttt

OpenStudy (anonymous):

Have you learned about factorial?

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
jay2craze: what color should i dye my dreads
1 hour ago 0 Replies 0 Medals
DonaldTrumpofQC: plz help
3 hours ago 13 Replies 0 Medals
Breathless: idk why but am taking it kinda slow on this one BUT it is looking good!
32 minutes ago 10 Replies 7 Medals
danielfootball123: What are good stocks to invest
8 hours ago 3 Replies 0 Medals
Burro: 5(5x+7)+3(x+3)
21 hours ago 13 Replies 2 Medals
XShawtyX: More art
1 hour ago 36 Replies 4 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!