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Ratling [72]
3 years ago
15

Mercury poisoning is dangerous overload of mercury within the body. A major source of mercury within the body, A major source of

mercury poisoning is consuming fish that contain mercury. Certain fish are more prone to having higher levels of mercury than others. The pie chart shows the distribution of four breeds of fish at a hatchery. The hatchery has approximately 6,000 fish. A biologist from the Centers for Disease Control and Prevention randomly test 5% of each breed of fish for mercury content. Her findings are shown in the following table. Based on the biologist's findings, if a single salmon is randomly selected from those that were tested, what is the probability that this particular fish would have a dangerous mercury level?
A) 0.001
B) 0.004
C) 0.02
D) 0.08

Mathematics
1 answer:
zlopas [31]3 years ago
8 0

Answer:

  D)  0.08

Step-by-step explanation:

The pie chart shows that of the 6000 fish in the hatchery, 1/4 of them, or 1500 fish are salmon. A 5% sample of that population will be ...

  0.05 × 1500 fish = 75 fish

If 6 of these have dangerous levels of mercury, the probability of randomly choosing a contaminated fish from the test group is ...

  6/75 = 8/100 = 0.08

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3 years ago
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-1/2 + 1 1/2 + 3 - n
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Answer:

The answer all together would be 5 minus n.

Step-by-step explanation:

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What is the perimeter of ABC with vertices at A (-11,4) B(-7,8) and C (-4,4)
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Answer:

Step-by-step explanation:

Using the distance formula,

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2 years ago
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Inessa05 [86]
Answer:

i. D:All real numbers

ii.R:y\le-2

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Step-by-step explanation:

The given function is

y=-\frac{1}{2} |x-1|-2

The domain of this function are the values of x that makes the function defined.

The absolute value function is defined for all real values.

The domain is all real numbers.

ii. The range refers to the values of y for which x is defined.

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The function is reflected in the x-axis.

The vertex is therefore the maximum point on the graph of the function.

The range is therefore;

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iii. To find the y-intercept, we substitute x=0 into the funtion.

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y=-\frac{1}{2} (1)-2

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The y-intercept is b=-2.5

The graph is shown in the attachment.

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Answer: i thinks it's D. none of the above because they are all angles?

Step-by-step explanation:

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