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Debbie is borrowing 3 books from her friend who has a collection of 45 books. Which of the following expressions represents the number of ways Debbie can choose a group of 3 books?
a.P(45, 3)
b.C(45, 3)
b.45!

Respuesta :

the order of the 3 books does not matter  so its the number of combinations of 3 from 45 

b is the correct choice
JeanaShupp

Answer: b.C(45, 3)

Step-by-step explanation:

Given: Debbie is borrowing 3 books from her friend who has a collection of 45 books.

Therefore,  the number of ways Debbie can choose a group of 3 books will be equal to the number of combinations of selecting 3 books from 45 books.

i.e. The number of ways Debbie can choose a group of 3 books=[tex]C(45, 3)[/tex]

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