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3 years ago

Inverse of f(x) = 3 + 2 In x?

Mathematics

1 answer:

JulsSmile [24]3 years ago

4 0

This is the inverse of f(x)= -3 - (-2)

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How do you find slope given on a graph?

oee [108]

You use rise over run. So you first count the rise( how many upwards is the point) then count the run( how many to the right or left is the point)

7 0

3 years ago

Help me asap please!!!

Natalija [7]

Answer:

C: Point R

Step-by-step explanation:

Here the "centroid" corresponds to the point where the figure (the triangle) would balance. That's right in the middle, at Point R. C is the correct answer.

5 0

3 years ago

It's nothing new: Let's recap rounding to the nearest 100<br>61566=<br>70284=

kap26 [50]

Answer:

Step-by-step explanation:

61566= 61600

70284= 70300

<h2><em>hope this helps comment if/if not </em></h2>

8 0

2 years ago

Your teacher asks you to find a recipe that includes two ingredients with a ratio of 1/2 cup/ 1/8 cup. a. give an example of two

Ksivusya [100]

A. Sugar And Brown Sugar (For Cookies)

B. No.

C 1/2 Cup (INGREDIENT) And 1/8 Cup (INGREDIENT)

7 0

3 years ago

What is the formula for a confidence interval?

ikadub [295]

Answer:

a) The formula is given by mean $\pm$ the margin of error. Where the margin of error is the product between the critical value from the normal standard distribution at the confidence level selected and the standard deviation for the sample mean.

b) $\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

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".

If the distribution for X is normal or if the sample size is large enough we know that the distribution for the sample mean $\bar X$ is given by:

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

Part a

The formula is given by mean $\pm$ the margin of error. Where the margin of error is the product between the critical value from the normal standard distribution at the confidence level selected and the standard deviation for the sample mean.

Part b

The confidence interval for the mean is given by the following formula:

$\bar X \pm z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$

5 0

3 years ago