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umka2103 [35]
3 years ago
8

1/x(x-2) + 1/x = 5/x(x-2)

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
7 0

1/x(x-2) + 1/x = 5/x(x-2)

Let's clear the fractions by multiplying both sides by x(x-2)

1 + (x-2) = 5

x = 6

Check

1/(6(6-2))+1/6 = 5/24

5/(x(x-2)) =5/(6(4))= 5/24, good

Answer: x=6

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Answer:

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3 years ago
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Which of the following is true for the rational function f(x) = x-16/x-4 ?
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 <span>First of all, F is true because (16 - 16)/(16 - 4) = 0. It just means when you plug in that number (16) you'll get 0. This will NOT happen for 4 because the 0 is in the denominator. 

Look what happens if you have x = 4. This gives you 12/0, which is undefined. For some graphs, this is a hole, but let's look closer. 

What happens if you have x = 3.9? You'll have 12.1/0.1. 3.9999? 12.0001/0.0001. The closer you get to 4, the closer you'll get to y = infinity. 

But what if you have 4.1? 11.9/-0.1. You'll get the same results, but NEGATIVE infinity. So it is NOT a hole in the graph. 

If you draw it out, you'll see that there is a vertical asymptote at x = 4. 

B and F are true. 

As for horizontal asymptotes, look at it like this: y = 16-16/16 - 4 means y = 0. There is no asymptote here. Try subbing in 1 = (x -16)/(x - 4). 
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3 years ago
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An article is bought for Rs.5000 and sold of the cost price.What is the profit percent?
Delicious77 [7]

Answer:

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7 0
4 years ago
3a^2+4b^2 for a=2 and b=3
blagie [28]
First write the question:
3a^2 + 4b^2

Substitute:
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Simplify again:
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Answer:
48

Hope it helped :)

4 0
3 years ago
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