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3 years ago

Which of the following expressions are equivalent to r + y + z?

Mathematics

1 answer:

zloy xaker [14]3 years ago

3 0

Answer:

c none of the above

Step-by-step explanation:

not a because x is never in the original expression

not b because you are subtracting something that should be added

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For the function f(x)

WITCHER [35]

Given:

The function is

$f(x)=\dfrac{8\sqrt[3]{x}-8}{9}$

To find:

The inverse function $f^{-1}(x)$ .

Solution:

We have,

$f(x)=\dfrac{8\sqrt[3]{x}-8}{9}$

Step 1: Putting f(x)=y, we get

$y=\dfrac{8\sqrt[3]{x}-8}{9}$

Step 2: Interchange x and y.

$x=\dfrac{8\sqrt[3]{y}-8}{9}$

Step 3: Isolate variable y.

$9x=8\sqrt[3]{y}-8$

$9x+8=8\sqrt[3]{y}$

$\dfrac{9x+8}{8}=\sqrt[3]{y}$

Taking cube on both sides, we get

$\left(\dfrac{9x+8}{8}\right)^3=y$

$y=\left(\dfrac{9x+8}{8}\right)^3$

Step 4: Putting $y=f^{-1}(x)$ , we get

$f^{-1}(x)=\left(\dfrac{9x+8}{8}\right)^3$

Therefore, the correct option is C.

4 0

2 years ago

Help plz i need an answer thx if you do

RoseWind [281]

Answer:

$\frac{1}{16}$ or in decimals: 0.0625

Step-by-step explanation:

4*4*4 is 4³ or 16*4 or 64

4*4*4*4*4 is $4^{5}$ or 16*16*4 or 256*4 or 1024

We have $\frac{64}{1024}$ which divided by 8 is $\frac{8}{128}$ which divided by 8 again is $\frac{1}{16}$

5 0

3 years ago

Read 2 more answers

De un pliego rectangular de foami que mide 96 cm de largo por 72 cm de ancho,se requiere cortar cuadros de la mayor superficie p

kykrilka [37]

I do not understand ur language I speak English very well sorry I can't help you with your homework

7 0

3 years ago

Can the sides of a triangle have lengths 2,4, and 10? Yes or no

Luba_88 [7]

Answer:

Step-by-step explanation:

the length of the smaller sides have to add up to the length of the largest side

7 0

3 years ago

Question 2 What percent is shaded green? Type your answer on the line. *

bekas [8.4K]

Answer:

14 % you just gotta count the green boxes and make it a percentage

6 0

3 years ago