The standard form of the equation of a circle is:

Where the point (a,b) represents the centre and r is the radius. So, given your information, the equation will be:
The best and most correct answer among the choices provided by your question is the third choice. There are 1350 different ring selections.
It is because:
3*15*30 = 1,350
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Answer:
21/506
Step-by-step explanation:
then you can simplify which gets you 21/506. Hope this helps :)
The correct answer is: A, I, II, III, and IV.
Hope this helps...
Answer:
8b
Step-by-step explanation:
'8 times b' symbolizes 8 being multiplied by 'b'.
Times is a word associated with multiplying.
8 times b can be 8 * b or most ideally, 8b.
Hope this helps!