3 years ago

How many ways are there to choose a committee of 3 people from a group of 9 people?

1 answer:

3 0

C r = (n!)/(r!(n-r)!)
9 C 3 = (9!)/(3!*(9-3)!)
9 C 3 = (9!)/(3!*6!)
9 C 3 = (9*8*7*6!)/(3!*6!)
9 C 3 = (9*8*7)/(3!)
9 C 3 = (9*8*7)/(3*2*1)
9 C 3 = (504)/(6) 9 C 3 = 84

You might be interested in

It is two plus two what does it equal?

eduard

I think it equals 4 or 6 or 8

4 0

2 years ago

Read 2 more answers

1/2+3/7= in simplest form

xxTIMURxx [149]

Answer:

1/14

Step-by-step explanation:

1/2+3/7=7/14-6/14=1/14

7 0

3 years ago

Please help me!!! The directions are at the top!! I will give brainliest!!

Pavel [41]

Answer:

The relationship is that if you divide say, 88÷4=22 the relationship is that all of them divided would equal 22.

Hope this helped.

3 0

2 years ago

Read 2 more answers

A(n) __________ is an operation that reverses the effect of another operation. (For example, a subtraction operation reverses th

wlad13 [49]

Answer:

I think the answer is inverse operation

3 0

3 years ago

Which of the images above represents a proof of the Pythagorean Theorem? Explain your choice, and than explain how the figure pr

Vedmedyk [2.9K]

We don’t have any of the “images” to answer this question.

6 0

3 years ago

Read 2 more answers