Answer:
720
Step-by-step explanation:
Since we are choosing a subset of 3 people from a set of 10 people, and arranging the 3 people according to relative strength, the answer can be obtained by computing P(10,3).
P(10,3)=10! / (10-3)!
= 10!/7!
Rewrite 10
! as
10 * 9 * 8 * 7
! / 7!
Cancel the common factor of 7
! and divide (
10 * 9 * 8
) by 1
10 * 9 * 8 = 720
Yes because all of x are different numbers.
Answer:
42.86
Step-by-step explanation:
Answer:
It's C
Step-by-step explanation:
120 x 0.4 = 48
120 - 48 = 72
Answer:
32. steps below.
Step-by-step explanation:
So calculate 4(2x2^3-8)
=
4(2^4-8)
calculate
4(16-8)
Then get
4x8=32.
