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
alexandr402 [8]
3 years ago
15

F^-1 (f^-1 (13))=f^-1 (8)​

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
7 0

According to the table, f(x) = 13 when x = 5. This means

f(5)=13\implies f^{-1}(13) = 5

From the table we also see that f(x)=5 when x=-9, so

f(-9)=5\implies f^{-1}(5)=-9

So we have

f^{-1}\left(f^{-1}(13)\right) = f^{-1}(5)=-9

On the other hand, the table shows f(x)=8 when x=-13, or

f(-13)=8\implies f^{-1}(8)=-13

so the given equation is not true.

You might be interested in
Answer it answer it answer it
Usimov [2.4K]

Answer:

The correct option is;

C. 52.2 × 4.4 × 2 + 47.8 × 4.4 × 2

Step-by-step explanation:

The area of the square frame is the area of the inner square subtracted from the area of the outer square

Which gives;

52.2² - 47.8² = 440

Therefore;

Option A. 52.2² - 47.8² is a correct way of finding the area of the square frame

Option B. 2 × ((52.2×2.2) + (47.8×2.2)) = 440, is  a correct way of finding the area of the square frame

Option C. 52.2 × 4.4 × 2 + 47.8 × 4.4 × 2 = 880, is not a correct way of finding the area of the square frame

The error is the thickness is 2.2 not 4.4

Option D. 100×(52.2 - 47.8) = (52.2 + 47.8) × (52.2 - 47.8) = 52.2² - 47.8² = 440,  is  a correct way of finding the area of the square frame

5 0
3 years ago
A bucket that weighs 5 lb and a rope of negligible weight are used to draw water from a well that is 60 ft deep. The bucket is f
mestny [16]

Answer:

The value is W= 2640 \  ft \cdot lb

Step-by-step explanation:

From the question we are told that

The weight of the bucket is F =  5 lb

The depth of the well is x_1 =  60 \ ft

The weight of the water is W_w  =  42 lb

The rate at which the bucket with water is pulled is v  = 1.5 \  ft/s

The rate of the leak is r = 0.15 lb/s

Generally the workdone is mathematically represented as

W =  \int\limits^{x_1}_{x_o} {G(x)} \, dx]

Here G(x) is a function defining the weight of the system (water and bucket ) and it is mathematically represented as

G(x) =  F  +  (W_w- Ix)

Here I is the rate of water loss in lb/ft mathematically represented as

I  = \frac{r}{v}

=> I  = \frac{0.15 }{1.5 }

=> I  = 0.1

So

G(x) =  5  +  (42- 0.1x)

=> G(x) =  47- 0.1x)

So

W =  \int\limits^{60}_{0} {47- 0.1x} \, dx]

=> W =  [47x - \frac{0.1x^2}{2} ]|\left 60} \atop {0}} \right.

=> W= [47(60) - 0.05(60)^2]

=> W= 2640 \  ft \cdot lb

7 0
3 years ago
Hello, no rush, but I need to know the answer for 4(x-2+y)
bixtya [17]

Answer:

It's 4x - 8 + 4y

Step-by-step explanation:

4(x-2+y)

4 (x) = 4x

4 (2) = 8

4 (y) = 4y

4x - 8 + 4y

3 0
3 years ago
(Geometry), homework please Help me , will rate brainliestttt
amid [387]

9 the smallest angle is always opposite the smallest side


Answer: choice d, angle B


They couldn't match the choice letters with the angles? Geez.


10.  That's an isoscles triangle


d + d + 116 = 180


2d = 64


d=32


choice a


11. 62+45+k=180


k=180-107 = 73


choice b



6 0
3 years ago
Please help me plot this
Thepotemich [5.8K]

Answer:

D' (-4,-2)

E' (-1,2)

F' (2,-4)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • An irregular pentagon is rotated 180 about the origin.which of the following statement is not true
    12·2 answers
  • Jason is a used-car salesman who sells domestic and foreign cars. He earns $7,000 for each domestic car sold and loses $3,500 fo
    9·1 answer
  • Nikita invests $2,000 into a bank account with a 4% annual interest rate. In seven years, which is the most expensive item she c
    8·1 answer
  • What is the pattern between 1/4, 1/2, 3/4, and 1
    9·1 answer
  • Manuel painted 0.75 of a rectangular banner green. After the paint dried, he painted 0.6 of the green area orange. What part of
    11·1 answer
  • Plz answer this question I need help
    15·1 answer
  • Arnold bought 2 3/4 yards of string. He needs to cut it into pieces 1/4 yard lang. How many nieces can he get?
    10·1 answer
  • Suppose you have 62 feet of fencing to go around a rectangular flower garden. You want
    13·2 answers
  • King Soopers has two different sizes of sport drinks. Sigi wanted to make sure that he got the size with the better price. There
    11·1 answer
  • A recent study found that 2.56% of college graduates were unemployed and 5.35% of high school graduates (with no college degree)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!