glitterunicorns456 glitterunicorns456

25-05-2022
Mathematics

contestada

How many combinations without repetition are possible if n = 6 and r = 3? 56 20 27 18

Respuesta :

21nolank 21nolank

26-05-2022

Answer:18

Step-by-step explanation:

n+r=9

n×r=27

r²=9

n²=36

n+n=12

r+n=9

r+r=6

Answer Link

Otras preguntas

Which statement most clearly describes Martin in the early part of the "The Medicine Bag"?

Дві паралельні лінії перерізають поперечною, як показано нижче. Припустимом <5=109° знайти <2m,<3m

What does Thomas Paine mean by“Small islands, not capable of protecting themselves, are the proper objects for kingdoms to take under their care; but there is s

Why were some Roman’s happy about being conquered by the Huns?

Calculer les coordonnées d'un point M situé à la distance 1 de l'axe polaire et à la distance 1 du point P(2; 120°).

Drag the tiles to the correct boxes to complete the pairs. Match the keys to their row location. S & T N top row key arrowRight home row key arrowRight bott

A new Youth Sports Center is being built in Alston. The perimeter of the rectangular playing field is 496 yards. The length of the field is 2 yards less than q

What is a freestyle event? What stroke is most commonly used? Why?

The Poll tax was imposed upon the peasantry to cover the cost of the war. O True O False

Healthcare professionals cite an enormous number of health problems related to obesity, and many people have an understandable desire to attain a healthy weight