luisicomve luisicomve
  • 01-05-2021
  • Mathematics
contestada

How many ways can three people be selected from a group of seven people if order
DOES matter?

Respuesta :

reeserl reeserl
  • 02-05-2021

Answer:

210 ways

Step-by-step explanation:

The is a permution problem.

Formula for permutations of r things taken from n things is

[tex]P(n,r) = \frac{n!}{(n - r)!}[/tex]

[tex]\frac{7!}{(7 - 3)!} = \frac{7!}{4!} = 7*6*5 = 210[/tex] ways

Answer Link

Otras preguntas

twice this number is 1 less than half of 26
Give an example that illustrates lipids being waterproof.
A ferrari advertisement states that a certain car can accelerate from rest to 20 m/s in 7 seconds. Find the car’s average acceleration
Squirrel tree services reports the following amounts on december 31, 2021.Assets Liabilities and Stockholders’ EquityCash
what is the answer to g+3=17
Laura says that the distance between (4,-2) and (4,-7) in the coordinate plane is equal to |-2-(-7)|units Ryan say that the distance between (2,3) (-9,3) in the
Write the point-slope form of the equation of the line through (4,-2) with slope of -1/2.
Dylan is 15, which is 3 years older than twice his sister Savannah’s age. How old is savannah
1/4 + 1/2 + x = - 3/4solve for x​
8-1- (18 – 2):8 help pls