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3 years ago

What are the terms and like terms? 1. 3n + 7 - n - 3

Mathematics

2 answers:

NikAS [45]3 years ago

8 0

The like terms are 3n and -n and the terms are 7 and 3

juin [17]3 years ago

6 0

Answer:

3n and -n

7 and -3

Step-by-step explanation:

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Artyom0805 [142]

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Step-by-step explanation:

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3 years ago

Use the data given below to answer the following questions 68,63,67,66,65,87,69,61,86,82,28, a. What is the outlier of the data?

Lady_Fox [76]

The outlier is 28 because there is a big gap between 28 and 61

to find the mean add all the numbers together then
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3 years ago

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Suppose a simple random sample of size n is drawn from a large population with mean mu and standard deviation sigma. The samplin

Sidana [21]

Answer:

$X \sim N(\mu,\sigma)$

Where $\mu$ the mean and $\sigma$ the deviation

Since the distribution for X is normal then we can conclude that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

$\mu_{\bar X} = \mu$

$\sigma_{\bar X}= \frac{\sigma}{\sqrt{n}}$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:

$X \sim N(\mu,\sigma)$

Where $\mu$ the mean and $\sigma$ the deviation

Since the distribution for X is normal then we can conclude that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

$\mu_{\bar X} = \mu$

$\sigma_{\bar X}= \frac{\sigma}{\sqrt{n}}$

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3 years ago

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What are the explicit and recursive formulas for the sequence 540, 180, 60, 20, ...?

Nuetrik [128]

Answer:

-40 i believe

Step-by-step explanation:

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3 years ago

Find the surface area of this triangular prism. Be sure to include the correct unit in your answer.

andreev551 [17]

Answer:

816 square feet

Step-by-step explanation:

13(16+20+12) + 16(12) = 816

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3 years ago