Hi! I don't really get these two questions, I would really really appreciate your help. Please if you don't mind include work in
your answer and an explanation. Please and thank you.
2 answers:
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Answer:
A. (-∞, ∞)
Step-by-step explanation:
f circle g (x) is another way of expressing f(g(x)). Basically, we have to plug g(x) into f(x) wherever we see x's.
f(x) = x^2 - 1
f(x) = (2x-3)^2 - 1
Now find the domain. I think the easiest way to do this is to graph it. I've attached the graph. You can also do it algebraically by thinking about it: it's a positive parabola (+x^2) and its minimum is -1, so its range will not be all real numbers, but its domain will certainly be. (The range would be answer choice B!)
Domain = (-∞, ∞)
Answer:
The exact area is
Step-by-step explanation:
The area of the major circle is subtracted from the area of the minor circle (blank)
Major circle
Minor circle:
The shaded area:
Hope this helps