The process of completing the square will always work.
o true
false

False

Step-by-step explanation:

Using only "complete the square" doesn't always give you the answer you need. Some times you need to use "Quadratic Formula" which is heavily used in Algebra often.

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq