Answer:
The answer is 10
Step-by-step explanation:
Answer:
-23.2
_____ _____
hello thre um ((_O_)) ((_O_))
/// v ///
You must calculate how many ways can 2 people be selected from 65.
The formula is:
n! / r! * (n-r)! =
65! / 2! * 63! =
65*64*63! / 2 * 63! =
65*64 / 2 =
2,080 handshakes
Source:
http://www.1728.org/combinat.htm
12. 37, 370, 10^2
13. 20.4, 10^2, 2040
15. 1000*1.75=1750
Hope it helped!
Hey bae use math-way it will definitely help
