Answer:

Step-by-step explanation:
The sample space for the experiment is:

- Number of elements in S, n(S)=12
Given an event E such that:

- Number of elements in E, n(E)=8
The outcomes in the complement of E are the outcomes in S that are not in E.

- Number of elements in the complement of E,

Therefore:

Answer: 
Step-by-step explanation:
In order to solve this exercise it is important to remember that a "Rate" is defined as a ratio that compares two different but related quantities.
Then, "Unit rate" tell us how many units of the first quantity corresponds to one unit of the second quantity. Therefore, the second quantity is equal to 1.
According to the information given in the exercise, you know that the number of hours of homework in 8 weeks is 240 hours.
Then, in order to determine the Unit rate (the number of hours per week), you need to divide 240 hours by 8 weeks.
Through the procedure explained above, you get the that the number of hours per week is the following:

(Notice that it is
)
Step-by-step explanation:
.....................
Answer:
D
Step-by-step explanation:
Answer:
n=-2
Step-by-step explanation:
answers are shown and pictured