Which equation can be used to determine the distance between the origin and (–2, –4)?
a. d = StartRoot ((0 minus 2) + (0 minus 4)) squared EndRoot
b. d = StartRoot (0 minus (negative 2)) squared + (0 minus (negative 4)) squared EndRoot
c. d = StartRoot ((0 minus 2) minus (0 minus 4)) squared EndRoot
d. d = StartRoot (0 minus (negative 2)) squared minus (0 minus (negative 4)) squared EndRoot

it "B"

Step-by-step explanation:

i took it on edge

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