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Given that y is inversely proportional to x^2 and x is always positive. If y=27 when x = 6, calculate the value of x when y=8.

 Jan 2, 2022
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y = k/x2           k = proprtionality constant

 

y x^2 = k

27 (62) = 972  

 

now when y = 8

8 (x2) = 972

x = +sqrt(121.5)

 Jan 3, 2022

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