Answer:
The sample space is:

Step-by-step explanation:
The sample space of an experiment is a set of all the possible values that satisfies that experiment.
The five supervisors are A, B, C, D and E.
Two are to selected.
The number of ways to select 2 supervisors from 5 is: 
The sample space will consist of 10 combinations.
The sample space is:

Answer: which problem is it ?
Step-by-step explanation:
Answer:
To get to -3 you can do 1+-4
2x^2 - 12x + 17
you just simplify it by doing the square number to the bracket and then multiply everything in the bracket by the number outside the bracket (this example 2)