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The diameter of one circle is represented by 12x. The diameter of another circle is represented by 6x^2y. What is the ratio of the radii of the two circles?

The diameter of one circle is represented by 12x. The diameter of another circle is represented by 6x^2y. What is the ratio of the radii of the two circles?
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4 votes
The diameter of one circle is represented by 12x. The diameter of another circle is represented by 6x^2y. What is the ratio of the radii of the two circles?

User Peter Long
by
8.3k points

2 Answers

1 vote
12x/2=6x---------
(6x)^2y=6^2y.x^2y-------

User Sergey Shafiev
by
8.1k points
5 votes
d/2=r

(r_1)/(r_2)= ( (d_1)/(2) )/( (d_2)/(2) ) = (d_1)/(d_2)

so we don't even need to convert
12x:6x²y
divide both sides by 6x
2:xy
the ratio is 2:xy
User Uzbones
by
8.1k points
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