Final answer:
The 4th root of 16 is 2, which can be calculated by raising 16 to the power of 0.25 or by taking the square root of 16 twice.
Step-by-step explanation:
The question asks for the 4th root of 16 given that "k = 3" which seems to be irrelevant to the calculation of the root. To calculate the 4th root of any number, you can raise that number to the 0.25 power (since 0.25 is the same as 1/4) or take the square root twice in succession. For the number 16, the 4th root is 2, because when you take the square root of 16, you get 4, and taking the square root of 4 again yields 2. This process can generally be performed using a calculator with a power function or a square root function.