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The area (A) of a circle is a function of its radius (r) and is given by the function A = f(r) = πr2. What is the domain of this function?

A. all positive real numbers
B. all real numbers
C. all positive real numbers including 0
D. all real numbers excluding fractions

User Josephine
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2 Answers

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It would be C hope that helps
User RaGe
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c.all positive real numbers including 0
User Higgsy
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