X to the power of 2 plus Y to the power of 2 plus 4x-2y=1 The equation of a circle in a xy plane is shown above. what is the radius of the circle.
A) 2
B) 3
C) 4
D) 9
I have no idea what the answer is

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry

answer: 180 degrees clockwise

step-by-step explanation: