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marin [14]
3 years ago
11

50 POINTS I really need help please

Mathematics
1 answer:
natka813 [3]3 years ago
5 0

Answer:

Solution given:

f(x)=5x-3

let

y=f(x)

y=5x-3

interchanging role of x and y

x=5y-3

x+3=5y

y=\frac{x+3}{5}

$o,

f-¹(x)=\frac{x+3}{5}

we conclude that

f-¹(x)≠g(x)

<u>Each pair of function are not inverses.</u>

g(x)=x/5+3

let g(x)=y

y=x/5+3

interchanging role of x and y

x=y/5+3

x-3=y/5

doing crisscrossed multiplication

5(x-3)=y

y=5x-15

g-¹(x)=5x-15

So

g-¹(x)≠f-¹(x)

<u>Each pair of function are not inverses.</u>

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I buy a MP3 player for £40 in a sale where it was 20% off. What was the original price
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20% off means you paid only 80% of the original price.
0.8x=40
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A marine biologist needs to put a GPS device underwater, halfway between two tracking stations to help document great white shar
Akimi4 [234]

The location of the GPS device will be ( 75,-45).

<h3>What is coordinate geometry?</h3>

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The regression analysis below rotates the value of new car sales (In millions of dollars) and the independent variables "compens
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How to do this question plz answer me step by step plzz plz plz plz ​
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Answer: 25.6

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Next, one child ticket costs 12. But it's 60% = 3/5 off, so 12 * 3/5 = 7.2 off. That means with the Railcard, it only costs 12 - 7.2 = 4.8.

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