11. What is the center and radius of the circle with equation (X - 5)2 + (y + 3)2 = 16? -
center (5, -3); radius = 16
center (5, -3); radius = 4
center (-5, 3); radius = 16

B). center (5, -3); radius = 4

Step-by-step explanation:

The equation of a circle is (x – h)^2 + (y – k)^2 = r^2,  and the center is the opposite inside the parenthesis, so its +5 and -3. And radius is r^2 = 16 or r = 4

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.