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Debora [2.8K]
4 years ago
6

About what percentage of fresh water fish are in the world

Mathematics
2 answers:
mina [271]4 years ago
7 0
About 41% of fresh water are fish through out the world! 
Alex777 [14]4 years ago
5 0
41% are freshwater species, 1% moves back and fourth between salt water and fresh water and 58% are marine <span />
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Y/x^2 + y/x^3<br><br>perform the operation and express your answer as a single fraction​
umka2103 [35]

Answer:

\frac{y}{x^2}+\frac{y}{x^3}=\frac{yx+y}{x^3}

Step-by-step explanation:

Given the expression

\frac{y}{x^2}+\frac{y}{x^3}

Let us perform the operation and express your answer as a single fraction​

\frac{y}{x^2}+\frac{y}{x^3}=\frac{x^3y+x^2y}{x^5}

            =\:\frac{x^2\left(xy+y\right)}{x^5}

            =\frac{\left(xy+y\right)}{x^3}

Therefore, we conclude that:

\frac{y}{x^2}+\frac{y}{x^3}=\frac{yx+y}{x^3}

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3 years ago
Is a &lt; 2 ?
Vladimir79 [104]

Answer:

  yes to both

Step-by-step explanation:

(1) For y=1, and x=a, ...

  a² + 1² ≤ 3

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All values of "a" are less than 2 inside the circle.

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(2) For y=4 and x=a, ...

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The value of "a" for point (a, 4) on the line is less than 2.

4 0
3 years ago
PLEASE HELP I REALLY DO NEED IT
OleMash [197]

Answer:

s>768

Step-by-step explanation:

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8 0
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Answer:

A) Cross-sectional

Step-by-step explanation:

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In the given situation, since a town obtains a data of the current employment for 10,000 of its total citizens

So this represents the cross-sectional

hence, the correct option is A.   Cross-sectional

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4 years ago
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