The domain of the function is \[A \ge0\] If A is negative we get an imaginary number for the radius. This makes sense because the area of a circle cannot be negative.
All of them are strategies for preventing cancer
Answer:
linear
Step-by-step explanation:
You can solve the system by isolating the same variable in both equations, then setting those equations equal to each other. For instance, say we isolate y:



Do the same for the other equation, then set both equations equal to each other. You can then solve for x. Once you have a value for x, you can plug it into either of the original equations and find y!