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Oxana [17]
3 years ago
8

HELP!!!! 2x+y= 20 3x+4y= 40

Mathematics
1 answer:
bagirrra123 [75]3 years ago
3 0

Answer:

(8,4)?

Step-by-step explanation:

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Answer:

I will show the way.

Step-by-step explanation:

r is the correlation coefficient

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To find SSxy

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To find SSxx

SSxy= ∑x^{2}- (∑x)^{2}/n

To find SSyy

SSxy= ∑y^{2}- (∑y)^{2}/n

if your r is near +1, it shows strong positive correlation. Y is proportional to X.

And if it nears -1, it would show strong negative correlation. Y is inversely proportional to X.

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How do you identify the opposite and the absolute value of a rational number
Sergeeva-Olga [200]

Rational numbers are the numbers that can be written as the fraction of two integers and absolute value is the distance a number is away from 0. If we look at a number line, the absolute value is the distance any number on the number line is away from 0. Distance is always positive, so our absolute value is always 0.

8 0
3 years ago
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Hatshy [7]

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Identify the outputs if the function rule is 2x - 5 and the inputs are 5,10,15
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Answer:

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Step-by-step explanation:

that is the answer

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3 years ago
A department within an agency is randomly chosen each week for auditing. If there are 25 departments, what is the chance that an
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<u>Answer:</u>

The chance that any single department is chosen for auditing in a given week is 0.04%

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Given that a department within an agency is randomly chosen per week for auditing and we are given total number of departments are 25 departments of which 1 is to be chosen.

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