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DerKrebs [107]
3 years ago
14

What is a​ case-control study?

Mathematics
1 answer:
Viktor [21]3 years ago
7 0
A case-control study is a type of observational study in which two existing groups differing in outcome are identified and compared on the basis of some supposed causal attribute.
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Frank and Maxine are comparing the number of boys and girls in the class. Frank says there are 12 out of a total of 24 students.
Marrrta [24]
Yes because if yuo add 12 more your adding 12 more of students to make 24

7 0
3 years ago
What if i=radical -1, what is the value of i^3
aleksklad [387]

\bf i^3\implies \sqrt{-1}\cdot \sqrt{-1}\cdot \sqrt{-1}\implies (\sqrt{-1})^2\sqrt{-1}\implies \sqrt{(-1)^2}\cdot \sqrt{-1} \\\\\\ -1\cdot i\implies \boxed{-i}

6 0
3 years ago
Simply this term <br>5x+3y+5+4x+3y+y+8<br>​
valentina_108 [34]

Answer:

9x+7y+13

Step-by-step explanation:

5x+4x=9x

3y+3y+y=7y

5+8=13

3 0
3 years ago
Can someone help me find the slope
julia-pushkina [17]
The slope is rise over run so it would be -1/3
4 0
3 years ago
I need a Math EXPERT!!! Please help me in my math homework. WILL MARK AS BRAINLIST.
qwelly [4]

velocity is the slope (which can be calculated after finding the derivative)  →  given function f(x), velocity = f'(x).

acceleration is the slope of the velocity (which can be calculated after finding the derivative of the velocity)  →  given function f(x), acceleration is f''(x)

**************************************************************************************************

1a) A → B

f(x) = \frac{25}{3}x + 10

f'(x) = \frac{25}{3}

1b) B → C

f(x) = \frac{-15}{3}x + 50

f'(x) = \frac{-15}{3} = -5

1c) C → D

f(x) = 20

f'(x) = 0

Hope this helps!

5 0
3 years ago
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