Answer
Full Solution Locked
Sign in to view the complete step-by-step solution and unlock all study resources.
Step 1: Understand the problem
The problem asks us to find the value of the combination $${9 \choose 2}$$.
A combination is a selection of items from a larger set, where the order of the items does not matter.
Step 2: Recall the combination formula
where $$n$$ is the total number of items, $$k$$ is the number of items to choose, and "!" denotes factorial.
The formula for combinations is given by:
Final Answer
{9 \choose 2} = 36
Need Help with Homework?
Stuck on a difficult problem? We've got you covered:
- Post your question or upload an image
- Get instant step-by-step solutions
- Learn from our AI and community of students