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sineoko [7]
3 years ago
5

A + (B + C) = (A + B) + C property

Mathematics
2 answers:
charle [14.2K]3 years ago
8 0

Answer:

a+b

Step-by-step explanation:

math

AnnZ [28]3 years ago
8 0
This is the Associative Property of Multiplication
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The population of a city is 50,000. It is increasing at an annual rate of 3%. What is the
vlada-n [284]
The population will be 56,275 people.
You can see the picture for the formula.

3 0
3 years ago
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Answer:

2.25 or 2 1/4 pounds

Step-by-step explanation:

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5 0
3 years ago
Karen deposited $25 in the bank on Monday, $50 on Wednesday and $15 on Friday. On Saturday, she took out $40. Karen's original b
natulia [17]
In order to solve this problem, use sign conventions. Since deposit indicates cash inflow, that would take the positive sign. On the other hand, withdrawals take negative sign. We add these integers to the original balance. he solution is as follows:

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3 0
3 years ago
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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2 years ago
What is part of a line, has one endpoint, and continues in one direction
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It is called a ray. Which is what you described
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3 years ago
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