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Rufina [12.5K]
3 years ago
10

Which of the following is a unit of density?

Mathematics
2 answers:
blagie [28]3 years ago
6 0
<h2>Answer:</h2>

The unit of density is:

               Kilograms per cubic centimeter.

<h2>Step-by-step explanation:</h2>

We know that the density of a substance is defined as the ratio of the mass of a substance to it's volume.

i.e.

\text{Density}=\dfrac{\text{Mass}}{\text{Volume}}

Now, we know that the standard unit of the mass of a substance is: Kilograms(kg)

and the standard unit for a volume is: cubic centimeters(cm³)

Hence, we will get the unit for density as:

            Kilograms per cubic centimeter

strojnjashka [21]3 years ago
4 0
Kilograms per cubic centimeter
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lakkis [162]

Answer: 0.002718

Step-by-step explanation:

Given : The population mean annual salary for environmental compliance specialists is about ​$62,000.

i.e. \mu=62000  

Sample size : n= 32

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Let x be the random variable that represents the annual salary for environmental compliance specialists.

Using formula z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}, the z-value corresponds to x= 59000 will be :

z=\dfrac{59000-62000}{\dfrac{6200}{\sqrt{32}}}\approx\dfrac{-3000}{\dfrac{6200}{5.6568}}=-2.73716129032\approx-2.78

Now, by using the standard normal z-table , the probability that the mean salary of the sample is less than ​$59,000 :-

P(z

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Harlamova29_29 [7]

Answer:

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Check work:

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thats the first equation, then

0\le f\le20

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