Step-by-step explanation:
when B is a subset of C, it means that everything in B is also contained in C. C just contains more than that.
when A is a subset of B, it means in the same way that everything in A is also contained in B. since it is contained in B, it is also contained in C.
so, A is therefore also a subset of C.
A correlation coefficient between average temperature and coat sales exists most likely to be between 0 and -1.
<h3>What is the correlation coefficient?</h3>
The correlation coefficient exists as the exact measure that quantifies the power of the linear relationship between two variables in a correlation analysis. A correlation coefficient between average temperature and coat sales exists most likely to be between 0 and -1.
A negative correlation suggests two variables that tend to move in opposite directions. A correlation coefficient of -0.8 or lower displays a strong negative relationship, while a coefficient of -0.3 or lower signifies a very weak one.
To learn more about correlation coefficient refer to:
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Given:
Perimeter of a rectangular paper = 22 inches.
Area of the rectangular paper = 28 square inches.
To find:
The dimensions of the rectangular paper.
Solution:
Let l be the length and w be the width of the rectangular paper.
Perimeter of a rectangle is:
Perimeter of a rectangular paper is 22 inches.
...(i)
Area of a rectangle is:
Area of the rectangular paper is 28 square inches.
Using (i), we get
Splitting the middle term, we get
Using zero product property, we get
If 
, then by using (i)
If 
, then by using (i)
Therefore, the dimensions of the paper are either 
or 
.
Answer:
y-8=2(x-9)
Step-by-step explanation:
m=y2-y1/x2-x1
10-8/10-9=2
y-y1=m(x-x1)
y-8=2(x-9)
