<u>Given</u>:
The equation of the circle is 
We need to determine the center and radius of the circle.
<u>Center</u>:
The general form of the equation of the circle is 
where (h,k) is the center of the circle and r is the radius.
Let us compare the general form of the equation of the circle with the given equation
to determine the center.
The given equation can be written as,

Comparing the two equations, we get;
(h,k) = (0,-4)
Therefore, the center of the circle is (0,-4)
<u>Radius:</u>
Let us compare the general form of the equation of the circle with the given equation
to determine the radius.
Hence, the given equation can be written as,

Comparing the two equation, we get;


Thus, the radius of the circle is 8
It is 15100. First 0 is no important.
Answer:
346
Step-by-step explanation:
(40*22)-(34*16)
=880-544
=346
Answer: B. the interest rate may change depending on the condition of the economy.
Step-by-step explanation:
By definition, in a adjustable-rate mortgage (which can be identified as ARM), the interest rates can fluctuates, this means that it can change periodically.
Therefore, the interest rate is fixed for a period of time and then it varies based on the index it is tied to. This index is set by market situation.
Then, keeping this on mind, the correct answer is the option B, which is: The interest rate may change depending on the condition of the economy.