(07.03 LC)
A circle is centered at (7, 8) and has a radius of 11. Which of the following is the equation for this circle?
(x - 7)2 + (y - 3)2 = 121
(x - 7)2 + (y - 3)2 = 11
(x + 7)2 + (y + 8)2 = 121
(X + 7)2 + (y + 8)2 = 11

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

5

step-by-step explanation:

55% are girls and 45% are boys : ) hope this

step-by-step explanation:

ratio is 2 : 9

the answer is three

13.5 : 3