Let f(x) = square root of 6x and g(x) = x - 3. what's the smallest number that is in the domain of fºg?

For this case we have the following equations:

We must find

By definition of composition of functions we have to:

So:

We must find the domain of f (g (x)). The domain will be given by the values for which the function is defined. That is to say:

Then, the domain is given by [3, ∞)

The smallest number that is the domain of the composite function is 3

c

step-by-step explanation:

it would be see because your formula is f(x)=6x, so 6 times 1 is 6 and you go on and the best answer is c.