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Yuki888 [10]
3 years ago
6

Can you guys help me☺️?...2h-3j=-112h+j = 1what the answer?☺️​

Mathematics
1 answer:
barxatty [35]3 years ago
6 0

Answer:

h = -1, j = 3

Step-by-step explanation:

Let's subtract the first equation from the second one:

(2h + j) - (2h - 3j) = 1 - (-11)

2h + j - 2h + 3j = 1 + 11

4j = 12

j = 12 : 4

<u>j = 3</u>

Then let's solve the second equation as we know <em>j</em>:

2h + 3 = 1

2h = -2

h = -2 : 2

<u>h = -1</u>

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the correlation between two variables related to the same sample is a scaled quantitative measure. what is used to scale this me
Doss [256]

The correct option is the standard deviations of the variables.

What is correlation?

Any statistical relationship between two random variables or bivariate data, whether causal or not, is referred to in statistics as correlation or dependence.

Correlation is a term used to describe the linear relationship between two entities. When using a correlation tool, the variables must be present in quantities of two or more to test their relationship (degree of association).

In order to scale the measurement between two variables connected to a similar sample, the standard deviation measures dispersion.

The variables' standard deviations are the best choice as a result.

Option involving the standard errors of the variables is incorrect because standard error, which stands for standard deviation, determines the relationship between dependent and independent variables.

Option involving the coefficients of variation of two variables is incorrect because the coefficient expressing standard deviation and mean ratio determines how much variation there is.

Option The means of the variables are incorrect because they are not a scale for determining the correlation between two variables.

Hence, the correct option is the standard deviations of the variables.

To know more about correlation, click on the link

brainly.com/question/2088651

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Complete question:

The correlation between two variables related to the same sample is a scaled quantitative measure. What is used to scale this measurement?

- the standard deviations of the variables

- the standard errors of the variables

- the coefficients of variation of the two variables

- the means of the variables

6 0
1 year ago
Represent this statement as an equation: Six more than twice a number is 20.
inna [77]

Answer:

2x+6=20

Step-by-step explanation:

4 0
3 years ago
a red hot ar balloon is 100 feet off the ground and is rising at a rate of 8 feet per second. a green hot air balloon is 160 fee
zhenek [66]

Answer:

it would be a fraction of a sec

Step-by-step explanation:

see if you just simply took out a calculator you would see its not possible unless you knew what the balloon is descending at during the fraction of the seconds

7 0
3 years ago
1. Evan drove 308 km in the same time that Meghan drove 329 km. If Meghan drove
emmainna [20.7K]

Answer:

Her average speed is 94 km/h

Time taken is 3.5 hours

Step-by-step explanation:

Let Evan’s average speed be x km/h.

now since Meghan drove faster, according to the question, we can say her average speed would be x + 6 km/h

Mathematically, time = distance/speed

so; since time is the same; we have

308/x = 329/(x + 6)

cross multiply

329(x) = 308(x + 6)

329x = 308x + 1848

329x-308x = 1848

21x = 1848

x = 1848/21

x = 88 km/h

Meghan average speed = x + 6 = 88 + 6 = 94 km/h

Time taken would be 329/94 = 3.5 hours

8 0
3 years ago
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Y=-X+4

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8 0
3 years ago
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