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BlackZzzverrR [31]
3 years ago
10

What is the range of the function y= -|x|

Mathematics
1 answer:
Katen [24]3 years ago
4 0
Hello, again!!

So, the range is the outcome when you plug in any x. In other words, the y.
Because this is absolute value, the x will turn positive. However, the number will then turn negative.
Therefore, y will ALWAYS be negative.

The answer is C.

Hope this helps!! Let me know if you have ANY questions.
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Which graph shows the solution to the system of linear inequalities?
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Answer:

  • See below

Step-by-step explanation:

<u>Given system:</u>

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The solution is the common area shaded by the inequalities.

The lines are parallel because of same slope.

Both lines are solid because of equal sign in both inequalities.

The first inequality has a y-intercept of 1 and shaded area is to the left of the line since the value of y is greater as x increases.

The second inequality has a y-intercept of -2 and shaded area is to the right of the line since the value of y is greater as x increases.

The matching graph is the second picture (or attached below) and there is no solution.

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nikklg [1K]

Answer:

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Step-by-step explanation:

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A researcher is 95% confident that the interval from 5.2 hours to 7.8 hours captures u = the true mean amount of time
igor_vitrenko [27]
<h3>Answer: Choice B</h3>

No, this is not a plausible value for the population mean, because 5 is not within the 95% confidence interval.

====================================================

Explanation:

The greek letter mu is the population mean. It has the symbol \mu which looks like the letter 'u' but with a tail at the front or left side.

The question is asking if mu = 5 is plausible if the researcher found the 95% confidence interval to be 5.2 < mu < 7.8

We see that 5 is <u>not</u> in that interval. It's a bit to the left of 5.2

Since mu = 5 is not in the interval, it's not a plausible value for the population mean.

Have we ruled it out with 100% confidence? No. Such a thing is not possible. There's always room for (slight) error. The researcher would need to do a census to be fully confident; however, such practices are very time consuming and expensive. This is the main reason why statistics is important to try to estimate the population with a sample.

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Tayla purchased a large box of comic books for $300. She gave 15 of the comic books to her brother and then sold the rest on an
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Answer:

Number of comic books is 75.

Original price of each comic book is 4$.

Step-by-step explanation:

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Which expression is equal to (3x−5)(2x−7)?
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(3x-5)(2x-7)
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The first one 
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