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2 years ago

Whats the area in red?

Mathematics

1 answer:

emmainna [20.7K]2 years ago

4 0

Answer:

im not completely sure but if i did my maths right its 24.6

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PLEASE HELP ASAP <br>are f(x)=4/x-2-1 and g(x)=3/x+2-2 inverses of each other?

GREYUIT [131]

Answer:

To find the inverse of:

$f (x)=\dfrac{4}{x-2}-1$

Set the function to y:

$\implies y=\dfrac{4}{x-2}-1$

Rearrange to make x the subject:

$\implies y+1=\dfrac{4}{x-2}$

$\implies (y+1)(x-2)=4$

$\implies xy-2y+x-2=4$

$\implies xy+x=2y+6$

$\implies x(y+1)=2y+6$

$\implies x=\dfrac{2y+6}{y+1}$

Swap x and y:

$\implies y=\dfrac{2x+6}{x+1}$

Change y to the inverse of the function sign:

$\implies f$ $\:^{-1}(x)=\dfrac{2x+6}{x+1}$

Rewrite g(x) as a fraction:

$g(x)=\dfrac{3}{x+2}-2$

$\implies g(x)=\dfrac{3}{x+2}-\dfrac{2(x+2)}{x+2}$

$\implies g(x)=\dfrac{3-2(x+2)}{x+2}$

$\implies g(x)=\dfrac{3-2x-4}{x+2}$

$\implies g(x)=-\dfrac{2x+1}{x+2}$

Therefore, as the inverse of f(x) ≠ g(x), the functions are NOT inverses of each other

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2 years ago

How much greater is the surface area of the rectangular prism than the surface area of the cube?

Sever21 [200]

Answer: 18 cm2

Step-by-step explanation: the surface area of the cube is 54 cm2 and the rectangular prism is 72 cm2 so 72 - 54 = 18

3 0

3 years ago

Use the information in the figure. Find mZD. 106 D Drawing not to scale 37° 53

harkovskaia [24]

Answer: Its B

Step-by-step explanation: Hope this was helpful I am not to sure this is the right answer but let me know if it is

3 0

3 years ago

Solve the equation <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%2B3%7D%7B4%7D%20%3D8" id="TexFormula1" title="\frac{x+3}{4} =8"

fiasKO [112]

Answer:

Step-by-step explanation:

Multiply by 4

so x+3=8*4

x+3=32

-3. -3

x=29

6 0

3 years ago

Read 2 more answers

Solve each equation 3x+2(5x-3)=7

Sloan [31]

Answer:

Step-by-step explanation:

Step 1:

3x + 2 ( 5x - 3 ) = 7

Step 2:

3x + 10x - 6 = 7

Step 3:

13x - 6 = 7

Step 4:

13x = 13

Answer:

x = 1

Hope This Helps :)

7 0

3 years ago

Whats the area in red?​

Whats the area in red?