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3 years ago

5

HELP!! :(

1 answer:

kondaur [170]3 years ago

4 0

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.

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