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GREYUIT [131]
3 years ago
14

Simplify 1/9 - 1/x over 1/81 - 1/x^2

Mathematics
1 answer:
cricket20 [7]3 years ago
7 0

Answer:

9x over x+9

Step-by-step explanation:

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Find the inverse of the given function.
kodGreya [7K]

For this case we must find the inverse of the following function:

f (x) = - \frac {1} {2} \sqrt {x + 3}

We follow the steps below:

Replace f(x) with y:

y = -\frac {1} {2} \sqrt {x + 3}

We exchange the variables:

x = - \frac {1} {2} \sqrt {y + 3}

We solve for "y":

- \frac {1} {2} \sqrt {y + 3} = x

Multiply by -2 on both sides of the equation:

\sqrt {y + 3} = - 2x

We raise both sides of the equation to the square to eliminate the radical:

(\sqrt {y + 3}) ^ 2 = (- 2x) ^ 2\\y + 3 = 4x ^ 2

We subtract 3 from both sides of the equation:

y = 4x ^ 2-3

We change y by f ^ {- 1} (x):

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Answer:f ^ {- 1} (x) = 4x ^ 2-3

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3 years ago
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Dominik [7]

Answer:

in the theory of chances, it states that no matter what the average, chance can change it no matter what. Like someone getting good chances in a video game 2 times in a row. its rare, but compared to how many people play the game and how often, it was bound to happen at some point. the chances could be tiny, but it could still happen. just like if 100 monkeys were on typewriters typing 60 wpm, one would eventually type Abraham Lincoln. low chance, but if all these monkeys are doing it enough, it would happen eventually. so, it is entirely possible that 2/3 of his next predictions will be correct.

Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

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Ne4ueva [31]

Answer:

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Step-by-step explanation:

3/2+5/4

(3x4) + (5x2)=2x4

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=22÷2

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