What are the center and radius of a circle whose equation is: (x−A)2+(y−B)2=C
Question options:

a)

Center: (−A,−B), radius = C

b)

Center: (−A,−B), radius =C −−√

c)

Center: (A, B), radius = C

d)

Center: (A, B), radius =C −−√

d)

Step-by-step explanation:

Equation of circle with center at point (h, k) and radius, r.

This problem:

(x − A)^2 + (y − B)^2 = C

The center is (A, B).

The radius is sqrt(C).

d)

16

step-by-step explanation:

2 x 40 = 80

80/5

= 16

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.