Point a has an x coordinate of -2 and lies in a circle with a center at (0,0) and a radius of 5 . to the nearest tenth , what is the y-coordinate for point a ?

the y-coordinate is ±√21

Step-by-step explanation:

Aren't you saying that the point lies ON the circle?

If so:

(x - h)^2 + (y - k)^2 = r^2

This becomes

x^2 + y^2 = r^2 because the center is at (0, 0).

This becomes x^2 + y^2 = 25 because the radius is 5.

Let's substitute -2 for x and find y:

4 + y^2 = 25, or y^2 = 21

Then the y-coordinate is ±√21

answer: the answer is c.

step-by-step explanation:

she’s dividing 1/3 of the flour into 2 jars.

hope this : )

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