Circle is centered at (4,-6) and has a radius of 8. What is the equation of the circle? Question 3 options:
a) (x−4)2+(y+6)2=64
b) (x+4)2+(y−6)2=16
c) (x+4)2+(y−6)2=64
d) (x−4)2+(y+6)2=16

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Rectangle pqrs has length a and width 4b. the x-axis bisects ps and qr what are the coordinates of the vertices

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?