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SVEN [57.7K]
2 years ago
15

Someone has conducted a study to see if there is increased risk of getting lung cancer if you work in a coal mine. In group 1, 3

0 of the 150 coal miners got lung cancer. In group 2, 5 out of the 250 non- coal miners got lung cancer. What is the sample relative risk
Mathematics
1 answer:
Aleonysh [2.5K]2 years ago
5 0

The sample relative risk is 10.

<h3>What is relative risk? </h3>

Sample relative risk is the ratio of disease risk or death in an exposed group to the disease risk or death in an unexposed group. Sample relative risk is a descriptive statistic.

What is the sample relative risk?

Sample relative risk = fraction of coal miner who got lung cancer / fraction of non coal miners who got lung cancer

Sample relative risk = (30 / 150) ÷ (5/250)

(1/5) ÷ (1/50

1/5 x 50 = 10

To learn more about sample, please check: brainly.com/question/18521835

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State what additional information is required in order to know that the triangles are congruent by AAS. part 2
SVEN [57.7K]

Answer:

Step-by-step explanation:

The trick is to find the third angle

180 - A - <BCA = <CBA

180 - X - <BCX = <CBX

Everything else is OK

<CBA = <CBX                  Equals equated to an equal express = an equal expression.

Now by a little slight of hand, you get the two triangles to be equal by ASA, which always works.

Cheating you say? There is no such thing as cheating if it correct and it works.

8 0
3 years ago
Simplify (34)−1.
elena55 [62]

The simplified form of the expression; (3/4)-¹ as given in the task content is; 4/3.

<h3>What is the simplified form of the expression as given in the task content?</h3>

It follows from the task content that the expression in discuss can be simplified as follows by the laws of indices;

(3/4)-¹

Hence, due to negative exponent, the result is;

= 1 ÷ (3/4)¹

= 1 × (4/3)

= 4/3.

Read more on indices;

brainly.com/question/170984

#SPJ1

6 0
2 years ago
The function y=40x describes how far from home Shu Ling is as she drives from Dallas to Miami. Graph the function. Use the graph
oksano4ka [1.4K]

Answer:

You can see the graph below.

To answer the question, you need to draw a vertical line from x = 12h up, until the line meets with the line.

Once the line meets with the line, draw a horizontal line from that point, and the value where this line intersects with the y-axis will be the distance from home after 12 hours.

The graph is kinda hard to read because the line is really steep, the green line is the equation y = 40*x

the red line is a line at x = 12

The black dashed line is the horizontal line that intersects with the y-axis.

In the graph, you can see that the dashed line intersects the y-axis at around y = 475.

Then a good estimate is that the distance after 12 hours is 475 (miles).

Now, we can compare this with the direct calculation, just replace x by 12 in the given line:

y = 40*12 = 480.

So our estimation is really accurate.

6 0
2 years ago
In the diagram below, what is the measure of angle 1?
guajiro [1.7K]

Answer: 82 degrees

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The price of a stock increased 12 cent Monday morning. On Monday afternoon, the price of the stock decreased 56 cent. On Tuesday
jeyben [28]
Ok, were starting at when the stock increased first which is 12 cents on monday.  to find your answer your going to need to add all of the increased cents first; then subtract.

12 + 14 = 26

So we have 26 cents, now we subtract the 56.

26 - 56 = -30

now we have -30.  now we find out how far away on the number line it is from 12.  your answer would be 42.

now for your answer, (i did all of that for other people who had the same question but different answer)

your answer would be 112 cents (which is option B)
6 0
3 years ago
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