exam Maths Puzzle Numerical Ability

if y varies inversely as x^2 and y=2 when x=4, what is the constant of variation?

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exam Other Question

Solve using the square root property:
(x + 6)^2 = 4 I promise this is the last tie I will beg for your helpPLEASE HELP
Solve the system of equations by the Gaussian elimination method:
1. Solve the system of equations by the