Answer:
B
Step-by-step explanation:
The equation of a circle is
(x-h)^2 + (y-k)^2 = r^2
h= 9, k = -7
r = 2, so r^2 = 4.
We now know that the equation must equal 4, so we can rule out answers A and C.
Plug in the values for h and k to get
(x-9)^2 + (y+7)^2 = 4
Choice B is correct!
Answer: FIRST OPTION.
Step-by-step explanation:
To know which is the solution set given the inequality
you need to solve for the variable "x".
You must divide both sides by 3:

Therefore, you get:

Then, the solution set is the following:
{
}
You can observe that this solution set matches with the first option.
4x(3x + 8) - 7y(5x - 1) =
12x^2 + 32x - 35xy + 7y