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sveta [45]
3 years ago
11

After factoring out the effect of other variables known to affect SAT, such as socioeconomic status, researchers found that musi

c students had a higher SAT score than non-music students. This is an example of __________.1. None of the other answers is correct2. Observational Study3. Comparative study
Mathematics
1 answer:
alina1380 [7]3 years ago
6 0

Answer:

fghjnkml

Step-by-step explanation:

happy thanksgiving!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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question 1 and 3

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Can anybody tell me how to turn the equations above into slope intercept form so I can graph it?
rjkz [21]

Answer:

First then second answer below

Step-by-step explanation:

-x+y 4

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7 0
2 years ago
If n lines are drawn in a plane, how many regions do they separate the plane into? induction
grandymaker [24]
Hello,

Let's assume i the number of lines,
 u(i) the number of regions:

u_0=1\\\\
u_1=2=1+1=1+u_0\\\\
u_2=4=2+u_1\\\\
u_3=7=3+u_2\\\\
u_4=11=4+u_3\\\\
u_5=16=5+u_4\\\\
...\\\\
\boxed{u_{n+1}=(n+1)+u_{n}}\\\\

u_{n+1}=(n+1)+n+(n-1)+...+1+u_0\\\\

\boxed{u_{n+1}= \dfrac{(n+1)*(n+2)}{2}+1 }
6 0
3 years ago
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