Answer:
23 degrees
Step-by-step explanation:
If <ADC is the arc measure of the circle, by definition the center angle (<ABC) has the same measure as its intercepted arc.

and

(f+g)(x) =

combining like terms gives you answer choice B
They are not, because inverse means multiply by -1, therefore, there should be a positive sign in front of 2 and a negative in front of x for G(x) = x - 2
Answer:
D 81 pi units^2
Step-by-step explanation:
The circumference of a circle is given by
C = 2 * pi *r
18 pi = 2 * pi *r
Divide each side by 2 * pi
18 pi / (2 pi) = 2 pi * r/ (2 pi)
9 = r
Now we can find the area. Area is given by
A = pi r^2
A = pi * 9^2
A = 81 pi units^2
Find the area of the base of the pyramid, then find the area of each side then add the areas. hope this help :)