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Natasha2012 [34]
2 years ago
12

A scientist wants to find the average mass of fish living in a large pond. So she will use the masses of a sample of fish from t

he pond to find the average mass.
Answer the questions below.

Mathematics
1 answer:
Oxana [17]2 years ago
6 0
The scientist would use milligrams, grams, and kilograms.

The best procedure would be to randomly pick 52 fish from the entire pond and weigh each of them as this would be the most unbiased way to achieve the average mass
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olga55 [171]
The square root of 25 is b. 5. This is because the square root of a number multiplied by itself equals the original number. Thus, the square root of 25 is 5.
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15−7×2+23 help...................................
Helen [10]

Answer:

24

Step-by-step explanation:

PEMDAS: 15-14+23

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As part of a science experiment, Sam recorded the four values shown in the table, but one of them got smudged on his paper. He r
denpristay [2]

Answer:

D) 4

Step-by-step explanation:

−9 + 12 + (unknown) + −8 = −1

<em>Start by going through and testing each option</em>

−9 + 12 + 2 + −8 =

3 + 2 + −8 =

5 + −8 =

−3

−3 ≠ −1

<em>A) 2 is not possible.</em>

−9 + 12 + −2 + −8 =

3 + −2 + −8 =

1 + −8 =

−7

−7 ≠ −1

<em>B) </em>−<em>2 is not possible.</em>

−9 + 12 + −4 + −8 =

3 + −4 + −8 =

−1 + −8 =

−9

−9 ≠ −1

<em>C) </em>−4<em> is not possible.</em>

<em>From this, D is looking like the answer. But to be sure, test it.</em>

−9 + 12 + 4 + −8 =

3 + 4 + −8 =

7 + −8 =

−1

−1 = −1

<em>D) 4 is the answer.</em>

5 0
3 years ago
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