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Sophie [7]
4 years ago
12

Researchers wanted to determine if there was an association between the level of happiness happiness of an individual and their

risk of diabetes diabetes. The researchers studied 1650 1650 people over the course of 5 5 years. During this 5 5​-year ​period, they interviewed the individuals and asked questions about their daily lives and the hassles they face. In​ addition, hypothetical scenarios were presented to determine how each individual would handle the situation. These interviews were videotaped and studied to assess the emotions of the individuals. The researchers also determined which individuals in the study experienced any type of diabetes diabetes over the 5 5​-year period. After their​ analysis, the researchers concluded that the happy happy individuals were less likely to experience diabetes diabetes. Complete parts​ (a) through​ (c). ​(a) What type of observational study was​ this? Explain.
Mathematics
1 answer:
Vladimir [108]4 years ago
4 0

Answer:

Corresponds to descriptive observational study

Step-by-step explanation:

In this case, surveys were conducted and cases were observed after the years had elapsed. More precisely, there is talk of a descriptive population study. If it were an analytical observational study, we would have to perform a sampling, have controls, perform different tests on the sample under analysis. In the case of the problem, the prevalence of diabetes disease and incidence were studied, depending on the "happiness" factor.

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y-6= -1/2(x-9)
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x(x+6)=

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4 0
3 years ago
<img src="https://tex.z-dn.net/?f=f%28x%29%3D%28x%2B4%29%5E2%5C%5C" id="TexFormula1" title="f(x)=(x+4)^2\\" alt="f(x)=(x+4)^2\\"
Yuri [45]

Answer:

x²+8x+16

Step-by-step explanation:

f(x) = (x+4)²

= (x+4)(x+4)

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3 0
3 years ago
Plz I can’t do this
zheka24 [161]

Answer: f(g(x))=x and g(f(x)) = x

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<u>Step-by-step explanation:</u>

Inverse is when you swap the x's and y's and then solve for y.

If f⁻¹(x) = g(x), then they are inverses of each other.

Similarly, if g⁻¹(x) = f(x), they are inverses of each other.

<em>NOTE: You can also use composition to determine if they are inverses  -->    If (fog)(x) = x, then they are inverses of each other.</em>

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f(x) = 3x+27\\\\\\\text{Swap the x's and y's NOTE f(x) is y}\\x=3y+27\\\\\\\text{Subtract 27 from both sides}\\x-27=3y\\\\\\\text{Divide everything by 3}\\\dfrac{1}{3}x-\dfrac{27}{3}=y\\\\\\\text{Simplify}\\\dfrac{1}{3}x-9=y\\\\\\\boxed{f^{-1}(x)\neq g(x)\text{ so f(x) and g(x) are NOT inverses of each other}}

7 0
3 years ago
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