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3 years ago

For which function is f(x) equal to f^-1(x)?

Mathematics

1 answer:

natulia [17]3 years ago

7 0

I think it can be C. but then again who am i

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Phường trình cosx=m có đúng 1 nghiệm thuộc đoạn [ 0; 3p/2]

Romashka [77]

Answer:

Step-by-step explanation:

sai đề

7 0

3 years ago

Need help.Pleaseeeee

Marina CMI [18]

Answer:

The first one and the last one

Step-by-step explanation:

To sub x>0 and x<0 into every functions.

Then, u will get some function that y doesn't have a negative value or positive value.

Then, these function doesn't fulfill the range.

Then, u will get the answer.

8 0

3 years ago

It is given that y varies inversely as x^2. If x is decreased by 50%, find the percentage change in y.

vova2212 [387]

Answer:

300%

Step-by-step explanation:

Given

$y\ \alpha\ \frac{1}{x^2}$

Required

Find the percentage change in y when x decreased by 50%

First, convert to equation

$y\ = \ \frac{k}{x^2}$

Where k is the constant of proportionality

When x decreased by 50%

$Y = \frac{k}{(x - 0.5x)^2}$

$Y = \frac{k}{(0.5x)^2}$

$Y = \frac{k}{0.25x^2}$

Expand

$Y = \frac{1}{0.25} * \frac{k}{x^2}$

Substitute $\frac{k}{x^2}$ for y

$Y = \frac{1}{0.25} * y$

$Y = 4 * y$

$Y = 4 y$

The percentage change is then calculated as:

$\%Change = \frac{Y - y}{y} * 100\%$

$\%Change = \frac{4y - y}{y} * 100\%$

$\%Change = \frac{3y}{y} * 100\%$

$\%Change = 3 * 100\%$

$\%Change = 300\%$

The percentage in y is 300%

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3 years ago

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Katarina [22]

Hope this will help u...

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3 years ago

:) the wheel of a unicycle has a radius of 14 in. About how many does it take for the wheel to travel 440 in.?

stira [4]

B but im not for sure

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3 years ago

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