Answer:
7. Positive association
8. No association
Step-by-step explanation:
7. In this scatterplot, the points form a rough line that goes higher as the x values increase. In other words, it's tilting up, and its slope is positive. This signifies a positive association or correlation.
8. In this scatterplot, there seems to be no particular pattern; the points are random. Notice how there is no rough line or shape formed by these points. Since there is no relationship between "Salary" and "Height," there is no association or correlation.
Answer:
75=2x-13
75+13=2x-13+13
88=2x
88÷2=2x÷2
44=x
Step-by-step explanation:
I believe the answer is C. because there were 20 hot dogs and 30 hamburgers sold for lunch...wouldn't the ratio be 30:20?
(correct me if I'm wrong).
200+400=600 u just add 2 and 6 togather and u get 6 and then annd the two zeros on too it
Answer:
(x, y) = (-6, -4)
Step-by-step explanation:
The solution can be found quickly using a graphing calculator. It is the point of intersection of the two lines.
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If you like, you can solve the system algebraically. The second equation can be rewritten to give ...
y = x +2
Substituting this into the first equation gives ...
5/3x -2(x +2) = -2
-1/3x -4 = -2
Adding 4 and multiplying by -3 gives ...
x = -3(-2+4) = -6
Then our equation for y tells us ...
y = -6 +2 = -4
The solution is (x, y) = (-6, -4).