Answer :
Final answer:
To find f(g(3)), substitute g(3) into f(x) = 2x + 1.
Explanation:
To find f(g(3)), we need to find the value of g(3) first. Given that g(x) = x², g(3) = (3)² = 9. Now, we can substitute this value into the function f(x) = 2x + 1 to find f(g(3)) = f(9) = 2(9) + 1 = 18 + 1 = 19. Therefore, the correct answer is d) 19.
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