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3 years ago

Testing to see if there is evidence that the correlation between two variables is negative.

1 answer:

8 0

You can use spearman’s rank correlation coefficient but not sure if that’s the answer your looking for because it looks like you haven’t gave the whole question

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Solve to find x and y in the diagram.

Kipish [7]

Considering the given information in the question, the value of x is $12^{o}$ , and that of y is $7.5^{o}$ .

A transversal is a line that cuts through two given parallel lines. Thus it intersects each parallel line at a point, forming four angles each.

From the given information in the question, it can be inferred that:

the given bottom right angle of the first intersection and the bottom right angle with the second intersection are congruent (corresponding angle property).

So that,

$(5x+4y)^{o}$ = $(12y)^{o}$

$5x^{o}$ = $12y^{o}$ - $4y^{o}$

$5x^{o}$ = $8y^{o}$ ............ 1

Also given that the top right angle at the second intersection is a right angle, then;

$12y^{o}$ + $90^{o}$ = $180^{o}$ (sum of angles on a straight line)

This implies that;

$12y^{o}$ = $180^{o}$ - $90^{o}$

$12y^{o}$ = $90^{o}$

So that,

y = $\frac{90}{12}$

y = $7.5^{o}$

Thus substituting the value of y in equation 1, we have;

$5x^{o}$ = $8y^{o}$ ........ 1

= 8(7.5)

5x = 60

x = $\frac{60}{5}$

x = $12^{o}$

Therefore, x = $12^{o}$ and y = $7.5^{o}$

For more clarification on a transversal of two parallel lines, check: brainly.com/question/1751268

#SPJ1

Kindly contact a 1-on-1 tutor if more explanations are needed.

5 0

2 years ago

Which of the following situations can be best represented by the inequality 6X + 15 < 100 ?

Elena L [17]

Answer:

6x<100-15

6x<85

x<85/6

x<14.17

Step-by-step explanation:

6 0

3 years ago

Please help with this question.

tensa zangetsu [6.8K]

Answer:

27.27%

Step-by-step explanation:

Given that,

Initial price = 11

Final price = 8

We need to find the percentage change in the price. It can be calculated as follows :

% = [(final-initial)/initial] × 100

So,

$\%=\dfrac{11-8}{11}\times 100\\\\\%=27.27\%$

So, the percentage decrease is 27.27%.

8 0

3 years ago

What value of ‘a’ makes the equation true? Show your work

gogolik [260]

Answer: 30/45=6/9
30 6
___=___
45 a

cross multiply
30a=270
divide both sides by 30
a=9

5.Answer=A

2 1/5=2 2/10

2 2/10+1 1/10=3 3/10

______________

Answer=-1

3/-5+(-4/10)=
3/-5-0.4
-0.6-0.4=-1

3 0

3 years ago

Read 2 more answers

Find the area __________

vladimir2022 [97]

Answer:

21+10.5

=31.5 ²

....

...

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4 0

3 years ago