2 years ago

Help me in question 6

Mathematics

1 answer:

Tanzania [10]2 years ago

5 0

C is the correct answer

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Express 128 1/4 in simplest radical form.

Zarrin [17]

Answer:

514/4

Step-by-step explanation:

128 1/4

= (128×4+1)/4

= 514/4

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3 years ago

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Find an equation of the circle whose diameter has endpoints (1,-5) and (-5,-3)

kirill [66]

Answer:The solution is in the attached file below

Step-by-step explanation:

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2 years ago

Write log2 0.25 = -2 in exponential form

oee [108]

Answer:

0.25 = 2^-2

The "^" means that -2 is an exponent on top of 2.

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3 years ago

Find the slope of (-9,18),(-13,5)

Jet001 [13]

Answer:

3.25

Step-by-step explanation:

The slope formula is slope = y2 - y1 / x2 - x1 and the variables are found by assigning them with their corresponding values. Here, x1 = -9, x2 = -13, y1 = 18, and y2 = 5. Next, substitute these values in and get 5 - 18 / -13 - (-9). This can fully simplify to 13 / 4 or 3.25.

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3 years ago

The number of violent crimes committed in a day possesses a distribution with a mean of 2.2 crimes per day and a standard deviat

VARVARA [1.3K]

Answer:

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

And replacing we got:

$\mu_{\bar X}= 2.2$

$\sigma_{\bar X}= \frac{6}{\sqrt{100}}= 0.6$

Step-by-step explanation:

For this case we have the following info given:

$\mu = 2.2$ represent the mean

$\sigma = 6$ represent the deviation

We select a sample size of n=100. This sample is >30 so then we can use the central limit theorem. And we want to find the distribution for the sample mean and we know that the distribution is given by:

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

And replacing we got:

$\mu_{\bar X}= 2.2$

$\sigma_{\bar X}= \frac{6}{\sqrt{100}}= 0.6$

6 0

3 years ago