Answer :
and 
Step-by-step explanation:
Given : A circle with the same radius as the circle shown but with a center at (-1.1).
To find : Which equation represents a circle ?
Solution :
The equation of a circle with center (h,k) and radius r is given by :

Here, we are given (h,k)=(-1,1)
and radius r=4 units
So, equation of circle will be :


or 
Therefore, the required equations of circle are
and 
Answer:
q = 6
Step-by-step explanation:
3/5 = q/10
10 ÷ 5 = 2
3 × 2 = 6
3/5 = 6/10
To find b you would be using the equation y=mx+b so to find be simply look at your equation and put your numbers in place so the answers so you would put your answers for the first one y=(m=-2)x(b=-3)
so easily the answers to these would be a=-3, b=-3 ,c=-4 ,d=-2
have a good night but definitly remeber the formula i told you for a test