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spayn [35]
3 years ago
6

If f(x) = 5x+4 and g(x) = x-4, find (f o g)(x) and (g o f)(x)

Mathematics
1 answer:
Vikki [24]3 years ago
7 0

Step-by-step explanation:

F(g(x)) = F(x-4)

= 5(x-4) +4

= 5x-20+4

=5x-16

G(f(x)) = G(5x-4)

= (5x-4) -4

= 5x-8

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Answer:

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Step-by-step explanation:

Let Eric has driven d miles.

As the rate of charge of driving the truck = 76 cents /mile

So, the charge of driving the truck for d miles = 76d cents= $0.76d

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Total money paid at the time of returning the truck = $152.23

So, 16.95+0.76d=152.23

0.76d= 152.23-16.95=135.28

d=135.28/0.76

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Hence, he drives 178 miles.

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