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sp2606 [1]
3 years ago
15

F(x)=x-1, h(x)=-x+1 find (f o h)(7)

Mathematics
1 answer:
iris [78.8K]3 years ago
4 0
F•h(7)=(-7+1)-1=-7 when you have a function that looks like foh, you basically plug the equation of h in for the x value in the equation of f
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The inequality to represent the temperatures at which the gas in the truck will remain in liquid form is -40 < x < 140

<h3>Part A: The inequality</h3>

Let the temperature of the gas be represented with x.

When the temperature hits −40° F (or below), the gas freezes.

This means that the gas temperature must always exceed −40° F to remain being a liquid

i.e x > −40

Also, when the temperature hits 140° F (or above), the gas evaporates.

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x > −40 and x < 140

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-40 < x and x < 140

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-40 < x < 140

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<h3>Part B: The description of the graph</h3>

In (a), we have:

-40 < x < 140

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Hence, the graph would use an open circle, and intervals between -40 and 140 would be shaded

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-40 < x < 140

The number -49 is not in the range -40 < x < 140

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Read more about inequalities at:

brainly.com/question/24372553

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