exam Maths Puzzle Numerical Ability

Decide whether or not the functions are inverses of each other..

f(x)=6x^2+5, Domain [0,Infiniti); g(x)=sqrt of (x-5)/(6), domain [5,Infiniti)


I believe they are??? Am I correct?

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exam Other Question
3 friends, each with some cash, redistribute they money as follows: Ami gives
enough money to Jan & Toy to double the amount that each has. Jan then gives enough to Ami & Toy to d find the domain

y=1/sqrt x-1