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docker41 [41]
3 years ago
6

Determine whether the description corresponds to an observational study or an experiment.Research is conducted to determine if t

here is a relation between stomach cancer and alcohol consumption.
Mathematics
1 answer:
Maslowich3 years ago
8 0

Answer:

Observational

Step-by-step explanation:

Observational studies are studies that measure the outcome of events without the introduction of interventions. They are useful in the formation of a hypothesis. The experiment described above is an observational study that compares two groups so as to measure the predictors of an outcome. No intervention is introduced to influence the outcome of the research.

An experiment on the other hand is often organized as a randomized control trial where subjects are divided into groups and a placebo or control group is introduced to monitor the outcome of the study.

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Implicit differentiation
take the deritivive with respect to x

first
y+2=(1/2)(x^2)-2sin(y)
take deritivitive
dy/dx+0=1/2(2x)-2(cosy)dy/dx
dy/dx=x-2cosy(dy/dx)
add 2cosy(dy/dx) to both sides
dy/dx+2cosy(dy/dx) =x
undistribute dy/dx
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divide both sides by 1+2cos(y)
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3 years ago
After the fraction x plus 2 all over 3 minus the fraction x plus 1 all over 2x have been combined using the least common denomin
kirill115 [55]
I'm pretty sure the answer is 2x2 + x -3
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4 years ago
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Aaliyah is drawing a ball from one bag and a tile from another bag. The first bag contains 4 green balls and 4 yellow balls. The
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Answer:0.7

Step-by-step explanation:

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the average marks of the first 10 students are 17 and that of the next 15 students is 18. find the mean of 25 students?
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Answer:

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_____

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J<br> L<br> N<br> M<br> If mZJKN = 28º and mZKLM = 103°, find mZJML.
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Answer:

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Step-by-step explanation:

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