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Explanation:
An outcome measured to see the effectiveness of the treatment.
The variable that is changed or manipulated in a series of experiments.
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The solution to the system of equations is x = 30 and y = -36.
The two equations are known as simultaneous equations. The elimination method would be used to determine to find the solutions.
−3x−9y=18 equation 1
4x+3y=12 equation 2
In order to determine the value of x, take the following steps;
Multiply equation 2 by 3
12x + 9y = 36 equation 2
Add equation 1 and equation 2
x = 30
Substitute for x in equation 2
4(30) + 3y = 12
120 + 3y = 12
120 - 12 = -3y
108 = -3y
y = 108 / -3 = -36
To learn more about simultaneous equations, please check: brainly.com/question/25875552
Answer: it is a result that's attributed to chance, which means there really is no difference
Explanation:
