Answer:
3 different choices
Step-by-step explanation:
This problem is a combination problem: She has 3 friends, and we want to know how many groups of 2 friends there are. We can solve this using the combination of 3 choose 2:
C(3,2) = 3!(1! * 2!) = 3*2/2 = 3 possibilities
If we call her three friends A, B and C, the groups that can be formed are:
A and B
A and C
B and C
Answer:
Step-by-step explanation:
1. 1/2
2. 1/4
3. 1/8
Answer:
{y|y≥−2}
Step-by-step explanation:
The domain is {x|x∈R}
The range is {y|y≥−2}
i believe your answers would be
1/2c+7 and 2H-9
