Julieta is using the dot plots to compare two sets of data. both plots use the same number line. what is the difference between the mean of each data set?

The answer is C, 9.

Step-by-step explanation:

The dot plot is giving the numbers 2, 3, 5, 5, 5, 9, 11, 14,15,21

and the second gives 7, 12, 16,16,18,20,20,25,28.

To find the mean, you add all of the numbers together and divide by the number of numbers there are, so if you had 1, 2, and 3, you would do 1 + 2 + 3 divided by 3, which is 2.

2, 3, 5, 5, 5, 9, 11, 14,15,21 all added together is 162, and 7, 12, 16,16,18,20,20,25,28 is equal to 90. 162 divided by 9 (since there are nine numbers) is 18, and 90 divided by 10 is 9.

18 - 9 is 9.

Hence the answer of 9.

Hope this helps!

I know for a fact this is from a "source."

*wink* :< )

choice b is correct

step-by-step explanation:

we have been given the following system of linear inequalities;

we are required to graphically determine the solution to these system of inequalities. using a graphing tool, the solution is as shown in the attachment below;

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: