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2 years ago

What is 54 divided 6 equal blank times 3

Mathematics

1 answer:

Nonamiya [84]2 years ago

5 0

$54:6=\fbox{3}\times3\\\\Check:\\\\54:6=9\\\\3\times3=9$

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Factoring expressions 9+36w

alexdok [17]

Answer:

9( 1 + 4w)

Step-by-step explanation:

So if you're simplifying then you need to find the greatest common factor. The GCF is 9.

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3 years ago

Dakota earned $7.50 in interest in Account A and $15.00 in interest in Account B after 18 months. If the simple interest rate

Helga [31]

Answer:A. 326.53 is the

Step-by-step explanation: I don't know.

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2 years ago

A sample of size 6 will be drawn from a normal population with mean 61 and standard deviation 14. Use the TI-84 Plus calculator.

AVprozaik [17]

Answer:

$X \sim N(61,14)$

Where $\mu=61$ and $\sigma=14$

Since the distribution for X is normal then the distribution for the sample mean is also normal and given by:

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

$\mu_{\bar X} = 61$

$\sigma_{\bar X}= \frac{14}{\sqrt{6}}= 5.715$

So then is appropiate use the normal distribution to find the probabilities for $\bar X$

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". The letter $\phi(b)$ is used to denote the cumulative area for a b quantile on the normal standard distribution, or in other words: $\phi(b)=P(z$

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:

$X \sim N(61,14)$

Where $\mu=61$ and $\sigma=14$

Since the distribution for X is normal then the distribution for the sample mean $\bar X$ is also normal and given by:

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

$\mu_{\bar X} = 61$

$\sigma_{\bar X}= \frac{14}{\sqrt{6}}= 5.715$

So then is appropiate use the normal distribution to find the probabilities for $\bar X$

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2 years ago

What the supplement of 106 degrees? *

aleksandrvk [35]

Answer:

Step-by-step explanation:

Supplement means whatever number added up to 180

For example:

60 and 120 are supplements since they add up to 180

Answer:

180

- 106

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2 years ago

What is 22 in centermeters

Gennadij [26K]

Answer:

22 feet in centimeters is 670.56

22 inch in centimeters is 55.88

Step-by-step explanation:

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2 years ago