The equation of a circle in standard form is

where (h, k) is the center of the circle, and r is the radius if the circle.
We need to find the radius and center of the circle.
We are given a diameter, so to find the center, we need the midpoint of the diameter.
M = ((-6 + 6)/2, (6 + (-2))/2) = (0, 2)
The center is (0, 2).
To find the radius, we find the length of the given diameter and divided by 2.





Step-by-step explanation:
(5 – 5i) . (-3+5i)
=-15+25i+15i-25i²
=-25i²40i-15
Answer:
63 cm^2
Step-by-step explanation:
For finding the area, split the given figure into 2 rectangles one with dimensions 6×5 and another with dimensions 12×2
Area = 6×5 + 12×2 = 39+24 = 63
18 - 2 = 16
8n = 16
Divide
N = 2
Answer:

Step-by-step explanation:
I have attached the explanation above. hopefully this will help