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3 years ago

7

How do the particular characteristics of an ecosystem arise?

1 answer:

kumpel [21]3 years ago

4 0

Answer:

Step-by-step explanation:

Ecosystems form in response to the unique but predictable climate of each geographic area. And since elevation and topography affect climate, ecosystems are different at different elevations. The life in any given ecosystem is the direct result of elevation, topography, and temperature, and rainfall patterns.

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Fill in the blank. a bisector is a ray that divides an angle into two angles of __________ measure.

zimovet [89]

<span>Fill in the blank. a bisector is a ray that divides an angle into two angles of equal measure.</span>

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4 years ago

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The standard deviation of a sample taken from population A is 17.6 for a sample of 25.

lawyer [7]

Answer:

The standard deviation of the sample mean differences is _5.23_

Step-by-step explanation:

We have a sample of a population A and a sample of a population B.

For the sample of population A, the standard deviation $\sigma_A$ is

$\sigma_A = 17.6$

The sample size $n_A$ is:

$n_A = 25$ .

For the sample of population B, the standard deviation $\sigma_B$ is

$\sigma_B = 21.2$

The sample size $n_B$ is:

$n_B = 30$ .

Then the standard deviation for the difference of means has the following form:

$\sigma=\sqrt{\frac{\sigma_A^2}{n_A}+\frac{\sigma_B^2}{n_B}}$

Finally

$\sigma=\sqrt{\frac{17.6^2}{25}+\frac{21.2^2}{30}}\\\\\sigma= 5.23$

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4 years ago

-2 x = 10 what is x.

Ipatiy [6.2K]

The answer is X = -5

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3 years ago

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What is the equation of a line whose slope is 9 and y-intercept is (0, -1)?

LekaFEV [45]

Answer:

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Step-by-step explanation:

The slope is 9 and the y intercept ( where x is zero) is -1

We can use the slope intercept form of the equation is

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Which of the following equations have no solutions?

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Answer:

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