If f(x) is the inverse of f(x), which statements must be true?
check all that apply.
a. the domain of f'(x) is the range of f(x).
b. the range of f'(x) is the range of f(x),
c. the domain of f1(x) is the domain of f(x).
d. f(f(x)) = x
o e. the range of f'(x) is the domain of f(x).

1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.

i'm sorry i don't know

step-by-step explanation:

pi x^2

step-by-step explanation:

pi times x squared