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Olin [163]
3 years ago
14

Is it a function????

Mathematics
1 answer:
Troyanec [42]3 years ago
7 0
Yes... according to what I know:)Let
me know if I’m wrong
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Identify the type of observational study​ (cross-sectional, retrospective, or​ prospective) described below. A research company
Sindrei [870]

Answer:

Prospective study

Step-by-step explanation:

<em>A cross-sectional study, also known as transverse study, is a type of observational study that analyzes data from a population at a specific point in time.</em> This kind of observation is used if cases cannot be identified a priori or if the prevalence of the disease or condition needs to be determined.

Cohort studies are when two or more groups of subjects are followed over time to see if they develop some disease or if some event occurs, there are two type of cohort studies, prospective and retrospective. <em>Prospective studies (or follow-up studies) follow subjects with different exposures until some point in time where something happens or the study ends</em>, r<em>etrospective studies use historical data</em> to make comparisons based on risk factors or exposures that occurred before the events.

Considering the information given and the observational study exposed to the question, we can conclude that we are talking about a prospective study because data is collected over the next 10 years.

I hope you find this information useful and interesting! Good luck!

7 0
3 years ago
Answer the following questions.
serg [7]
39 is <span>312% </span>of 12.5

To find this you just divide 12.5 into 39 which gives you 3.12. To change that to a percentage you multiply by 100 which gives you 312%

7.5 is <span>102% </span>of 7.38

To find this you just divide 7.38 into 7.5 which gives you 1.0162, which I rounded to 1.02. To change that to a percentage you multiply by 100 which gives you 102%

I hope this helped! :)
6 0
3 years ago
Please help and quick the questiion is attached!!! 25 points.
adelina 88 [10]

Answer:

last one

Step-by-step explanation:

8 0
2 years ago
Solve for x.<br> 3(x + 2) + 4(x - 5) = 10
____ [38]

Step-by-step explanation:

3x+6+4x-20=10

7x-14=10

7x=24

x=24/7

6 0
3 years ago
Read 2 more answers
the ages of six girls are as follows;17,8,12,15,15,13 .what would be the age of the seventh girl that would make the mean age of
Elden [556K]

Answer:

11 yrs

Step-by-step explanation:

Mean = sum of ages/number of ages

Let the age of the seventh girl be A

Given the addition of the age of the seventh girl will make the mean of the ages be 13,

So,

13 = 17+8+12+15+15+13+A/7

Add up the ages

13 = 80 + A /7

Cross multiply

80 + A = 13 x 7

80 + A = 91

Subtract 80 from both sides to isolate A

80 - 80 + A = 91 - 80

A = 11

The age of the seventh girl is 11

7 0
3 years ago
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