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¹ Lee, J.Y. (2013). “Private tutoring and its impact on students' academic achievement, formal schooling, and educational inequality in Korea.” Unpublished doctoral thesis. Columbia University.
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varies inversely as the square root of 
. If 
, then 
. Find 
if 
(nearest tenth, if applicable).
varies directly with 
, and inversely with the square root of 
.
and 
, then 
.
if 
and 
.