Answer:

Step-by-step explanation:
To write the equation of a circle, use the formula
where the center of the circle is (h, k).
This means the equation is
.
Find the radius r by dividing the diameter of 10 in 2. The radius is 5.
So the equation of the circle is 
Answer:
The parametrization, of the given curve is 
Step-by-step explanation:
From the question we are given the function

At y= 5


Converting the above to it polar equation we have

The answer to 8 + 11 is 19
Answer: 75%
Step-by-step explanation:
15/20 = 3/4 or 75%