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Sedaia [141]
3 years ago
15

Solve the compound inequality. 3x + 1 <4 or 9x > 31

Mathematics
1 answer:
WINSTONCH [101]3 years ago
7 0

Answer:

Step-by-step explanation:

3x < 4 - 1   or x > 31/9

3x < 3 or x > 31/9

x < 1  or x > 31/9

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I have problems to found my answer, somebody can help me?
Thepotemich [5.8K]
So final step to do is you square root the x^2 and square root the 4000 which will get you answer of x = 63.2455532034 which can be 63.2. Hope this help!!
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Suppose the average yearly salary of an individual whose final degree is a​ master's is ​$41 thousand less than twice that of an
alexdok [17]

Answer:N/B The amount is in thousands

The total amount earned by a Bachelor's person be $x:

amount earned by a masters person will be $(2x-38)

Total amount earned by the two individuals will be:

x+(2x-38)=115

solving for x we get:

x+2x-38=115

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3x=153

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also:

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therefore we conclude that master's individual earns average of $ 64,000 while the Bachelor's individual earns $51,000.

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3 years ago
The heart rate variability​ (HRV) of police officers was the subject of research published in a biology journal. HRV is defined
nexus9112 [7]

Step-by-step explanation:

Consider the provided information.

Part (A) We need to find the confidence coefficient.

The given value or percentage of probability is known as the confidence  coefficient that the interval contains the parameter.

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It means that there is 99% confident that the mean of population HRV for officers diagnosed hypertension which lies between 6.9​ and 122.9​

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Part (C)

If you are saying 99% confident that means the 99% of the similarly generated confidence intervals will contain the true value of the population mean in repeated sampling.

Part (D)

If We want to reduce the width of each confidence interval, you need to use smaller confidence coefficient.

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Find the perimeter and area ​
Paraphin [41]

Answer:

Perimeter = 19.6 cm

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7 0
3 years ago
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