Answer:
Step-by-step explanation:
Circle is centred at (0, -2)
-> h = 0 & k = - 2
radius of the circle (r) = y-coordinate of the center = - 2
Equation of circle in standard form is given as:
Plugging the values of h, k and r in the above equation, we find:
![(x-0)^2 +[y-(-2)]^2 = (-2)^2](https://tex.z-dn.net/?f=%28x-0%29%5E2%20%2B%5By-%28-2%29%5D%5E2%20%3D%20%28-2%29%5E2)
This is the required equation of circle.
Use the cos rule
cos^-1(18^2+28^2-12^2 divided by 2*18*28
Which is 16.99 degrees, which is 17 (option d)
First you have to multiply -2 and 2 which is -4x.
Then your going to distribute -4 to 4x which is -16x.
Now your going to distribute -4 and -3 which is 12.
So your simplified expression would be -16x + 12
I would say B sorry if im wrong tho
All of them are correct . Number six is 0.28 as a decimal
7 x 4
-- = 28; 0.28 is the answer
25 x 4
