Use the function to answer the question.

f(x) = 4x - 1; g(x) = 5x^2

what is equal to (f o g)(x)?

80x^2 - 40x + 5

20x^3 - 5x^2

5x^2 + 4x - 1

20x^2 - 1

20x^2 - 1 (fourth possible answer is the correct one)

Step-by-step explanation:

To obtain (f o g)(x), use function g(x) as the input (x) to f(x), as follows:

f(x) = 4x - 1  becomes f(g(x)) = 4g(x) - 1.

But g(x) = 5x^2, so we get:

                                    f(g(x)) = 4(5x^2) - 1

and this simplifies to:    f(g(x)) = 20x^2 - 1

answer: the dogs need to shift their focus to human scent.

its because the dogs being trained are for search and rescue thus they need to be able to track humans and their specific scent

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step-by-step explanation: