leidysantiago leidysantiago
  • 24-02-2021
  • Mathematics
contestada

9. Con 12 libros de diferentes autores, cuántas selecciones de 7 libros se pueden

hacer si:

a. Un libro determinado se incluye siempre.

b. Un libro determinado nunca se incluye.​

Respuesta :

hprokopiou33 hprokopiou33
  • 24-02-2021
answer is 14 because 3x4 is 12 +2 = 14
Answer Link

Otras preguntas

What did Jefferson believe about the way Washington and Adams had acted as president ?
What is the efficiency of a device that gives you 10 units of useful energy for every 100 units you put in it? A. 1 B. 0.5 What is
Factor completely 3x3 – 21x2 – 27x ...?
Construct a list of the five most important things a person should do to prepare for parenthood. Discuss which one is most important to you.
Each time Allison goes to the recycling center , she takes 10 bags of cans . She will go twice this month 3 times next month ,and once the following month . How
When is Thanksgiving held today?
What is the effect of the imagery in this poem?
What are the minimum factors a router must know to be able to affectively route packets?
Write a proportion that can be used to find the cost of 10 notebooks if 3 notebooks cost $1.98.
What is 9*9+5\6+6+6/7-7-8+7*5+6*4*4+6