Respuesta :

Answer:

240 miles

Step-by-step explanation:

If x is 4 hours and d(x) represents the amount of distance traveled, then we would choose the expression that allows us to find d(x).

Since x = 4 and 4 is greater than 2 but less than 5, we will choose the second expression 2 < x [tex]\leq[/tex] 5.

We will then plug our x-value (4) into the expression to find d(x).

If d(x) = 65x - 20

d(x) = 65(4) - 20

d(x) = 260 - 20

dx) = 240 miles

VectorFundament120

Hi there.

The answer is 240 miles.

Explanation:

As our x-term is represented as hours. Meaning our d(x) is represented as the distance.

Travel in 4 hours, meaning we have to substitute x = 4.

Both functions have given and specified domains. Which function doesn't have x = 4 as a part of the domain. That is the first function, thus the first function is out.

Our main function is currently —

[tex]d(x) = 65x - 20[/tex]

As x is represented as hours. Substitute x = 4 in the function.

[tex]d(4) = 65(4) - 20 \\ d(4) = 260 - 20 \\ d(4) = 240[/tex]

Thus, the answer is d(4) = 240 miles.

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