The subjects in the experiment are given as follows:
b) the two AP Statistics curricula.
<h3>What are the subjects of an experiment?</h3>
The subjects of an experiment are the hypotheses which are studied in the experiment.
For this problem, we are testing hypotheses involving two forms of the curriculum, hence the correct option is given by:
b) the two AP Statistics curricula.
More can be learned about the subjects of an experiment at brainly.com/question/2792045
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Choice B, a is equal to c and b is not equal to d
Assuming this is a system of equations, here is how to find x.
2x + 3y = 45
x + y = 10
Multiply x + y = 10 by 2 so you are able to use the elimination method.
2x + 3y = 45
2x + 2y = 20
Subtract.
y = 25
Now that we've found y, we can plug it in to find x.
x + 25 = 10
Subtract 25 from both sides.
x = -15
If cos θ = (-5/13), then θ should be in quadrant II or III. The given says sin θ < 0, so θ should be in quadrant III. In this case, tan <span>θ should be equal to number greater than zero. Hence we get sqrt of (13^2 - 5^2 ) equal to 12. tan </span><span> θ should be equal to A 12/5. </span>
Answer:
x = 2 1/ 2 , − 1 1/2
Step-by-step explanation: