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Answer: A.)The response variable is the amount of activity the patients were able to do after surgery, and the explanatory variable is the type of spinal surgery.
Step-by-step explanation:
The response variable focuses on the question in a study or an experiment while the explanatory variable is the one which explains the changes in that variable.
Here response variable is the amount of activity the patients were able to do after surgery while the explanatory variable will be spinal surgery type
Option A is correct
U would factor by grouping and get x^2(x-2) + 3(x-2) and then get (x^2 +3) (x-2)
Using equivalent angles, we have that the measures are given as follows:
<h3>What are equivalent angles?</h3>
Each angle on the second, third and fourth quadrants will have an equivalent on the first quadrant.
120º is in the second quadrant, hence the equivalent on the first quadrant is:
180º - 120º = 60º.
The sine on the second quadrant is positive, hence:
The cosine on the second quadrant is negative, hence:
The tangent is given by the <u>sine divided by the cosine</u>, hence:
More can be learned about equivalent angles at brainly.com/question/24787111
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Answer:
B. 2 rides per hour
Step-by-step explanation:
9*x=18
9/9*x=18/9
x=2
Hope this helps!
