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konstantin123 [22]
3 years ago
11

Needs help with numbers 14,18,19,20

Mathematics
2 answers:
mixas84 [53]3 years ago
5 0
14 would be 300
18 would be 700 and 500
19 would be 752 and u would put 7,5,2 and round to 800
20 would be 4
Elis [28]3 years ago
3 0
All u doing is couting numbers and add on to what u have i show you 14,18,19,20,
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-4/5(-8x+6)=1+7 Please Help
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Answer:

x = 2

Step-by-step explanation:

-4/5(-8x + 6) = 1 + 7 (distribute first)

6.4x -4.8 = 8 (add 4.8 on both sides)

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x = 2

PLUG IN

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George earns a salary of $84,500 per year. He gets a paycheck every other Friday. What is the amount of each check?
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6 0
3 years ago
) The correlation between a car’s engine size and its fuel economy (in mpg) is r= -0.774. What fraction of the variability in fu
Zolol [24]

The fraction of the variability in fuel economy is accounted for by the engine size is 59.91%.

Given that, r= -0.774.

To solve such problems we must know about the fraction of the variability in data values or R-squared.

<h3>What fraction of the variability in fuel economy is accounted for by the engine size?</h3>

The fraction by which the variance of the dependent variable is greater than the variance of the errors is known as R-squared.

It is called so because it is the square of the correlation between the dependent and independent variables, which is commonly denoted by “r”  in a simple regression model.

Fraction of the variability in data values = (coefficient of correlation)²= r²

Now, the variability in fuel economy = r²= (-0.774)²

= 0.599076%= 59.91%

Hence, the fraction of the variability in fuel economy accounted for by the engine size is 59.91%.

To learn more about the fraction of the variability visit:

brainly.com/question/2516132.

#SPJ1

3 0
2 years ago
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