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AVprozaik [17]
3 years ago
7

What is y = 5 - 2x 3x - 2y = 4

Mathematics
1 answer:
timofeeve [1]3 years ago
5 0

Answer:

x = 2

y = 1

Step-by-step explanation:

y = 5 - 2x (1)

3x - 2y = 4 (2)

From (1), substitute in (2)

3x - 2(5 - 2x) = 4

3x - 10 + 4x = 4

Collecting like terms

3x + 4x = 4 + 10

7x = 14

x = 2

Since x = 2

Therefore

y = 5 - 2x

y = 5 - 2(2)

y = 5 - 4

y = 1

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The average annual salary for employees in a store is $50,000. It is given that the population standard deviation is $4,000. Sup
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Answer: 478

Step-by-step explanation:

The formula to calculate the standard error of the population mean is given by :-

S.E.=\dfrac{\sigma}{\sqrt{n}}, where \sigma is the standard deviation and 'n' is the sample size.

Given: Mean : \mu=$\50,000

Standard deviation : \sigma= $\4,000

Sample size : n=70

Now, the value of the standard error of the average annual salary is given by :-

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3 years ago
The table shows the average number of pounds of trash generated per person per day in the United States from 1970 to 2010 use th
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Answer: Mean=4.11

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Step-by-step explanation:

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3.25, 3.25, 3.66, 3.83, 4.44, 4.52, 4.57, 4.69, 4.74

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