2 years ago

If the measures of two angles add up to 90

Mathematics

1 answer:

dsp732 years ago

7 0

Answer:

complementary angles

Step-by-step explanation:

If the measures of two angles add up to 90 then they are complementary angles

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2 years ago

If the radius of a circle is 3.5 what is the area?

Gala2k [10]

Answer:

A= 12.25π or A≈ 38.48

Step-by-step explanation:

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2 years ago

Solve this proportion 9/v = 3/2 a. {6} b. {7.3} c. {4.4} d. {1.3} What percent of 151 is 119.5? a. 129.8% b. 126.4% c. 79.1% d.

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V = ( 9*2 ) / 3 ;
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c. is the right answer;

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d. is the right answer.

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2 years ago

This recipe makes 12 flapjacks.

Scorpion4ik [409]

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2 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:

$\mu_{\bar X}= 2.2$

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

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2 years ago