Provide an appropriate response.If Q varies inversely as the square root of R and Q = 2 when R = 9, what is Q when R is 16?

A. 1.5
B. 24
C. 4.5
D. 2.66666667

Answer: A

Mathematics

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Provide an appropriate response.Find the ratio of the area of a circumscribed circle of an equilateral triangle to the area of the inscribed circle. [Hint: The altitudes of an equilateral triangle intersect at the center of the inscribed circle. This point of intersection falls one third of the distance along each altitude moving from the base towards the opposite vertex.]

A. : 1
B. : 1
C. 2 : 1
D. 4 : 1