If a function wouldn't represent area of a circle its domain would be all real numbers. For any number r we can calculate f(r)
But since radius of circle cannot be negative and it also doesnt make sense that it is 0 the answer would be all positive real numbers
Answer is a.
Answer:
2.29*10^-2
Step-by-step explanation:
I cant see the other half
Answer:
look it up on Google and you can probably know what the answer is sorry cuz I really don't know but I'm just trying to help you and if I'm not if it does not work that I'm really sorry I tried my best