In the figure below, if C is the center of the circle and 30 < C < 60, then which of the following expresses all possible values of a?

Select one:

A. 50
B. 60 < a < 70

C. 60 < a < 75

D. 75 < a < 90

E. 100 < a < 115

Option C.

Step-by-step explanation:

In the given figure C is the center of the circle.  

Let A and B are two points on the circle, such that

Since CA and CB are radius of the circle, therefore ABC is an isosceles triangle.

Using angle sum property,

Divide both sides by 2.

It is given that

    (Subtract from 180)

     (Divide by 2)

Hence, the correct option is C.

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)

im guessing (23,14). hope this : )