Answer:
.0625 or A
Step-by-step explanation:
You have to work out the mean. (The simple average of those numbers) Then for each number subtract the Mean and square the result. Then work out the average of those squared differences.
Using a linear function, it is found that the rate of change in this problem situation is of -2 contestants per week.
<h3>What is a linear function?</h3>
A linear function is modeled by:
y = mx + b
In which:
- m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
- b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.
Considering the situation described, the number of participants after n weeks is given by:
N(n) = 20 - 2n.
The slope is of -2, hence the rate of change in this problem situation is of -2 contestants per week.
More can be learned about linear functions at brainly.com/question/24808124
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Answer:
14.64
Step-by-step explanation:
A negative times a negative equals a positive and there are 2 decimal places.
Answer:
x=4
Step-by-step explanation:
6 - 6x = 5x – 9x - 2
6+2=5x-9x+6x
8=2x
4=x
What you need to do to be able to solve this is move all of the terms that have no variable and the ones that have the same variable to the other side. Once you have that, you should be able to do 6+2 and solve the side that has variables as if it has no variables. Remember that you have to flip the sign when you are moving all of the numbers. Then when you get to the step where both sides have only one number, that is when you would divide the other number, which in this case is 8, by 2, which is the number correlated with x. And that should get x by itself, and give you the solution.
<h3>
Answer: See the attached image below for the filled out table</h3>
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Explanation:
For each value in the table, you will divide it over 200 because there are 200 people total in this survey. Doing so will give you the decimal form of the percent. From here you move the decimal point over 2 spots to the right to get it to percent form.
For instance, in the top left corner we have 104 people satisfied with plan A. This is out of 200. So 104/200 = 0.52 = 52% are satisfied with plan A. We'll write 52% in the top left corner. The other cells of the table are filled in a similar fashion.
An alternative route is possible. Since we are given a limited amount of choices (rather than fill in the blank), we can note that 8 is the smallest value in the table. This must mean that it corresponds to the smallest percentage in the list of options. Sure enough 8/200 = 0.04 = 4%. Then we have 24 as the next smallest item in the original table. It corresponds to the next smallest percentage 12%, and sure enough 24/200 = 0.12 = 12%. This process can be continued until you fill out the table. Keep in mind that this method only works if you are given a list of choices like this. Otherwise, it is ideal to use a calculator to compute the percentages.
