Answer:
They are indeed inverse equations.
Step-by-step explanation:
The way you determine whether or not any equations are inverses, is that if you put one of the equations in for x in the other equation and then solve, the final answer is y = x. In this case we'll put d(x) in for x in the b(x) equation.
b(x) = log([1 + 10^x/4] - 1)^4
b(x) = log (10^x/4)^4
b(x) = log(10^x)
b(x) = x
Therefore they are inverse equations.
