Register
Determine the number of combinations of 7 things taken 4 at a time
180k views
1 vote
Determine the number of combinations of 7 things taken 4 at a time

User Roybalderama
by
8.3k points

1 Answer

2 votes

_(7) C_(4) \\ \\ (7!)/((7-4)!4!) \\ \\ (7!)/(3!4!) \\ \\ (7*6*5*4*3*2*1)/(3*2*1*4*3*2*1) \\ \\ (7*6*5)/(3*2*1) \\ \\ (210)/(6) \\ \\ 35
User Aliasav
by
9.1k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Link Copied!