Final answer:
To find the value of (f - g)(144), substitute 144 into f(x) and g(x), then subtract the results.
Step-by-step explanation:
To find the value of (f - g)(144), we need to substitute 144 into the functions f(x) and g(x) and then subtract g(x) from f(x). Starting with f(x), we substitute x = 144 and calculate: f(144) = sqrt(144) + 12 = 12 + 12 = 24. Next, we substitute x = 144 into g(x) and calculate: g(144) = 2 * sqrt(2) = 2 * 1.414 = 2.828. Finally, we subtract g(144) from f(144): (f - g)(144) = 24 - 2.828 = 21.172.