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d1i1m1o1n [39]
3 years ago
12

Find the value of this expression if x = 7 and y = 1 xy^2/-8

Mathematics
1 answer:
lana [24]3 years ago
4 0

Answer:

5

Step-by-step explanation:

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In one study, it was found that the correlation coefficient between two variables is -0.98. Which statement is true?
Vadim26 [7]

<u>Answer- </u>D. There is a strong negative association between the variables

<u>Solution-</u>

Properties of Correlation Coefficient

1-  Its value ranges between -1 and 1.

2- The greater the absolute value of correlation coefficient, the stronger is the linear relationship.

3- The weakest linear relationship is indicated by a correlation coefficient equal to 0.

4- A positive correlation means that if one variable gets bigger, the other variable tends to get bigger.

5- A negative correlation means that if one variable gets bigger, the other variable tends to get smaller.

As the given correlation coefficient is -0.98 (-ve), whose absolute value is 0.98 (closer to 1)

So there is a strong negative association between the variables.

3 0
2 years ago
Ms.Henderson is using triangles in her graphic design project.The triangles are isosceles.One had a base of 4 inches and legs of
tester [92]
If the two triangles are similar you can use a proportion to solve for the length of the legs.
\frac{2}{4}=\frac{x}{9}
Now, you would cross multiply to get 
4x=18
Now, you simplify that using the division property of equality.
You end up with 
x=4.5
Therefore, the legs of the triangle with a base of 9 inches will each be 4.5 units long.
4 0
2 years ago
. PHYSICS A ball is dropped from a height
aleksklad [387]

Answer:

Step-by-step explanation:

40/ 1.5= 20

20/ 1.5= 10

10/ 1.5= 5

5/ 1.5= 3.3

Answer: 3.3

*not sure if this is correct!*

8 0
2 years ago
240 is 60% of what number
slamgirl [31]
The answer is 400
 
240/ 0.6 = 400
7 0
3 years ago
767,074 rounded to the hundred thousand
professor190 [17]

800,000 is the answer hoped it helped

7 0
3 years ago
Read 2 more answers
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