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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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Hey could someone please help me understand the question. Ill give brainliest.
Airida [17]

Answer:

(D) (1300)

Step-by-step explanation:

You add the percents 8+2+16=26%.

Then multiply with total, 5000x0.26=1300

6 0
2 years ago
Read 2 more answers
How do you solve this question?
dmitriy555 [2]
Hi!

Theoretically we know that there needs to be a total of 34 muffins so that each student gets two.

So 34-5(already baked) gives us 29

X has to be 29

Algebraically you would solve it like this (x+5)/17= 2

the numerator equals to the 34 and you divide by the 17 to get the two muffins per student.

I hope this helped!
4 0
3 years ago
A fish tank holds 10450ml of water. The water is leaking at a rate of 270ml per minute. What is the function to model this situa
bogdanovich [222]

Answer:

The function is given f(t) = 10450 - 270t

3 0
3 years ago
Bess and Gina earn $45 per week for delivering flowers. Bess worked for x weeks and earned an additional total bonus of $20. Gin
Inessa05 [86]

Answer:

First option: 45x + 20 + 45y

Step-by-step explanation:

The missing options are:

45x + 20 + 45y\\65x + 45y\\45x - 20 + 45y\\\\45x + 65y

 We know that "x" represents the number of weeks Bess worked and "y" the number of weeks Gina worked.

According to the data  given in the exercise, Gina and Bess earn $45 per week for delivering flowers, this is:

45x+45y

Since earned an additional total bonus of $20, then the total money in  in dollars that Bess and Gina earned for delivering flowers can be shown with the following expression:

(45x+20)+45y=45x+20+45y

Notice that this expression matches with the one shown in the first option.

8 0
3 years ago
You roll a fair 6 sided die what is the probability you roll a 1 or 3?
Elenna [48]

2/6                                I hope this helps!

5 0
3 years ago
Read 2 more answers
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