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3 years ago

How would i do this problem?

Mathematics

2 answers:

Darya [45]3 years ago

6 0

Answer:

answer is a=22

follow me!

CaHeK987 [17]3 years ago

5 0

Answer:

a=22 hope it helps:))

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Which of the following choices are contained in the figure below? Select all that apply:

Yuri [45]

Answer: 1 and 3

Step-by-step explanation: math is easy

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3 years ago

Given f(x)=3x+12, find f(f^-1(0))

mamaluj [8]

Answer:

Step-by-step explanation:

METHOD 1.

We know:

$f\bigg(f^{-1}(x)\bigg)=x$

Therefore

$f\bigg(f^{-1}(0)\bigg)=0$

METHOD 2.

$\text{Find}\ f^{-1}(x)$

$f(x)=3x+12\to y=3x+12$

exchange x to y and vice versa:

$x=3y+12$

solve for y:

$3y+12=x$ <em> subtract 12 from both sides</em>

$3y=x-12$ <em>divide both sides by 3</em>

$y=\dfrac{x-12}{3}\to f^{-1}(x)=\dfrac{x-12}{3}$

$f\bigg(f^{-1}(x)\bigg)\to$ replace x in f(x) with the expression $\dfrac{x-12}{3}$

$f\bigg(f^{-1}(x)\bigg)=3\cdot\dfrac{x-12}{3}+12=x-12+12=x$

$f\bigg(f^{-1}(0)\bigg)\to$ put x = 0 to $f\bigg(f^{-1}(x)\bigg)=x$

$f\bigg(f^{-1}(0)\bigg)=0$

METHOD 3.

$\text{Find}\ f^{-1}(x)$

$f^{-1}(x)=\dfrac{x-12}{3}$

Calculate the value of <em>f</em> ⁻¹(x) for x = 0:

$f^{-1}(0)=\dfrac{0-12}{3}=\dfrac{-12}{3}=-4$

Calculate the value of <em>f(x)</em> for x = -4:

$f(4)=3(-4)+12=-12+12=0$

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3 years ago

Which of the following options have the same value as 10%, percent of 33?

Kamila [148]

Answer:

3.3

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

What is the same as 3/5 and 4/7

kkurt [141]

Answer:

These are all the same questions with one answer. 0.6 is greater than 0.571. Therefore, 3/5 is greater than 4/7 and the answer to the question "Is 3/5 greater than 4/7?" is yes.

Step-by-step explanation:

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3 years ago

Johnathan has a bag that contains 10 blue marbles 6 green marbles and 8 yellow marbles he selects one at random

In-s [12.5K]

U have to add all to see the total number of the marbles and then u just use the numbers that u have so red is 0/24 green is 6/24 yellow is 8/24

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3 years ago