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e-lub [12.9K]
3 years ago
12

If h(x) = x – 7 and g(x) = x2, which expression is equivalent to (gxh)(5)??

Mathematics
1 answer:
vovikov84 [41]3 years ago
7 0

We want g(h(5)).

First find h(5).

h(5) = 5 - 7

h(5) = -2

We now find g(-2).

g(x) = x^2

g(- 2) = (-2)^2

g(-2) = 4

In conclusion, g(h(5)) = 4.


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Step-by-step explanation:

Here in this question , we are interested in calculating the total distance covered by the train in the 10 minutes that it ran.

From the first part of the question, we already know the distances in the first 5 minutes.

Now, to calculate the total distance in the second 5 minutes, we use the distance formula since we have the average speed and the time;

Mathematically; Total distance = average speed * time

From the question, average speed is 33km/h, while time is 5 minutes. To achieve a consistent unit, we convert 5 minutes to hours.

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