1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
loris [4]
3 years ago
12

49 POINTS!!!!!!!! PLZ HELP!

Mathematics
1 answer:
monitta3 years ago
7 0

Answer:

(a) f⁻¹(x) = 2x - 8

(b) f⁻¹(4) = 0

Step-by-step explanation:

This is usually not too difficult if you write the equation as y = f(x), then swap x and y and solve for y.

... y = (1/2)x + 4 . . . . y = f(x)

... x = (1/2)y + 4 . . . . variables swapped

... x - 4 = (1/2)y . . . . . subtract 4

... 2(x -4) = y . . . . . . multiply by 2

... y = 2x - 8 . . . . . . simplify

... f⁻¹(x) = 2x -8

____

Evaluating this for x=4, we get

... f⁻¹(4) = 2·4 - 8 = 0

You might be interested in
Please help on this equation I don't get it.
olasank [31]

Answer:

0.6 liters

Step-by-step explanation:

3 liters divided amongst 5 people comes to 0.6 liters per person. there are approximately 33.8 ounces in a liter so in ounces, everyone would get approximately 56.35 ounces of soda.

for a picture you could draw a cup with soda in it and label it to show the amount

7 0
3 years ago
Complete the rule:<br> positive + negative -
aivan3 [116]

Answer: If you have a positive and a negative, there is one dash left over, and the answer is negative.

7 0
3 years ago
Read 2 more answers
The set of all numbers less than or equal to -8 or greater than or equal to 2.
tatiyna

The set of all numbers less than or equal to -8 or greater than or equal to 2 is -8 ≥ x ≥ 2. The set is {x∈R|-8 ≥ x ≥ 2}

<h3>The set of numbers</h3>

From the question, we are to write the set of numbers l<u>ess than or equal</u> to -8 or<u> greater than or equal</u> to 2

Let x represent the set of the numbers

If a number is less than or equal to -8

Then,

-8 is greater than or equal to the number

That is,

-8 ≥ x

If a number is greater than or equal to 2

Then,

x ≥ 2

Thus, the set of all the numbers is

-8 ≥ x ≥ 2

Hence, the set of all numbers less than or equal to -8 or greater than or equal to 2 is -8 ≥ x ≥ 2. The set is {x∈R|-8 ≥ x ≥ 2}

Learn more on Set of numbers here: brainly.com/question/18667553

#SPJ1

7 0
2 years ago
Which of the following expressions is equivalent to 3?
stellarik [79]

Answer:

answer is 7 + (-4)

Step-by-step explanation:

7 + (-4) = 3

-7 + 4 = -3

7 - (-4) = 11

-7 - (-4) = -3

hope i helped

3 0
3 years ago
Use the graph representing bacteria decay to estimate the domain of the function and solve for the average rate of change across
nasty-shy [4]

Answer:

Domain is [0,18]

Average rate of change of bacteria per minute is -3333.33.

Step-by-step explanation:

Domain is the possible values of x.

From the graph, it's clear that the x values ranges from 0 to 18 as the end points of the graph are (0,60) and (18,0)

So, domain of the function is [0,18].

Now, average rate of change is negative as there is bacteria decay.

Average rate of change is given as the negative ratio of y intercept to the x intercept.

Here, x-intercept is 18 and y-intercept is 60000.

So, average rate of change is given as,

R_{avg}=-\frac{60000}{18}=-3333.33

Therefore, average rate of change of bacteria per minute is -3333.33.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Please help me with this problem thanks guys
    8·1 answer
  • What is the output of the fuction f(x)=x+21 if the input is 4
    14·1 answer
  • I need help in the picture I just sent
    6·1 answer
  • What is the unit rate for 16 ounces (pint) at $3.93?
    10·2 answers
  • -2x+7=13x-5 looking for x
    12·2 answers
  • Express as a trinomial.<br> (3x+5)(2x+9)
    9·2 answers
  • If the point (x, y) is in Quadrant III,<br> which of the following must be true?
    14·1 answer
  • Unit 3 | Lesson 9
    5·2 answers
  • 4. a. Write a story to represent the equation 15 ÷ 1/9 : _______. Solve the equation and complete the story.
    11·1 answer
  • Help me please (I need write more something in order to I can submit answer)​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!