Answer:
90 different ways
Step-by-step explanation:
We have a total of 10 members, and we want to find how many groups of 2 members we can have, where the order of each member in the group of 2 is important, so we have a permutation problem.
To solve this problem, we need to calculate a permutation of 10 choose 2.
The formula for a permutation of n choose p is:

So we have:



So there are 90 different ways of choosing a president and a vice-president.
Answer:
3.5
Step-by-step explanation:
the original probability is 7/6 favoring odd
Answer:
*thinking*
Step-by-step explanation:
Yea Ima need you to add a picture of the pairs then I should be able to help. Ill follow so ill see when you update
4(3 + 7)
= 4(3) + 4(7) //Demonstrating distributive property
= 12 + 28
= 40