The difference between causation and correlation is that, Causation is characterized by cause-and-effect while correlation establishes a probable relationship.
<h3>What is the difference between Causation and correlation?</h3>
While Causation is characterized by a situation in which an action certainly causes an outcome and hence, is described as a cause-and-effect relationship, Correlation on the other hand only establishes a relationship between the two events and doesn't necessarily ascertain the occurrence of the other event .
An example of two variables which may be correlated is; the height and weight of an individual in which case it is generally perceived that taller people are heavier.
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Use trigonometry.
cos(18°) = x/25
Multiply both sides by 25.
cos(18°)25 = x
23.7764129074 = x
We round off to the nearest hundredth. This means to round off to two decimal places.
Doing so, we get 23,78 cm = x.
1)
3x-2y=14
y=5x
So we plug in y=5x into 3x-2y=14
We get:
3x-2(5x)=14
3x -10x=14
-7x=14
x=-2
So we found x, now we need to find y. We can simply plug in x into the equation and get y.
y=5x
y=5(-2)
y=-10
So your answer will be (-2,-10).
2)
x-2y= -2
y= 2x+4
Once again plug in y=2x+4 into x-2y=-2
x-2(2x+4) = -2
x-4x-8=-2
-3x-8=-2
-3x = 6
x= -2
Now we plug back in x and solve for y :)
y=2x+4
y=2(-2)+4
y=-4+4
y=0
So our solution would be (-2,0).
3)
x+2y=-7
x-5y=7
Multiply the second equation by -1
-x+5y=-7
Now add that equation with the other one:
x+2y=-7
+
-x+5y=-7
-----------------
7y=-14
y=-2
Now plug in y=-2 and solve for x
x+2y=-7
x+2(-2)=-7
x+(-4)=-7
x-4=-7
x=-3
So your solution would be (-3,-2).
