Which graph shows a function whose inverse is also a function?

Answers

Answer 1

Step-by-step explanation:

Using the concept of inverse function, it is found that the first graph shows a function whose inverse is also a function.

----------------------------------------

A function f(x) will only have an inverse function if: f(a) = f(b) \leftrightarrow a = bf(a)=f(b)↔a=b , that is, a value of y will have only one respective value of x.

----------------------------------------

In the first graph, for each value of y, there is only one value of x, so the inverse is also a function, and this is the correct option.

In the second graph, for example, y = 0 when x = -1 and when x = 1, so the inverse is not a function.

In the third graph, for example, y = -3 when x = 0 and x = 2, so the inverse is not a function.

In the fourth graph, for example, y = 1 for two values of x, so the inverse is not a function.


Related Questions

please help me, if you help then thanks!

Answers

Answer:

The last one is the answer.

Step-by-step explanation:

Inverses are like opposites so [tex]\sqrt{x}[/tex] would be the inverse of [tex]x^{2}[/tex]. However don't be fooled by the second option because that is not the same although it seems like it. The true inverses are [tex]\sqrt[3]{27}[/tex] and [tex]3^{3}[/tex]. 3 cubed is 27 and the cube root of 27 is 3.

A box filled with books weighs 1112 kilograms.

Assume 1 kilogram = 2.20 pounds.

What is the best estimate of the weight of the box in pounds?


20 pounds

25 pounds

30 pounds

I don't know.

Answers

Answer:

24.464~20 pounds

Step-by-step explanation:

11.12*2.20

=24.464

24.46=20

Hope this helps :)

The best estimate of the weight of the box in pounds is 2,446.4 pounds.

Given that, a box filled with books weighs 1112 kilograms.

We need to find what is the best estimate of the weight of the box in pounds.

How to convert kilograms to pounds?

To convert kilograms to pounds, multiply your kilogram measurement by 2.2.

Given, 1 kilogram = 2.20 pounds

Now, 1112×2.2=2,446.4 pounds

≈2,446

Therefore, the best estimate of the weight of the box in pounds is 2,446  pounds.

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Use the numbers 0 - 9 in the blanks to make the equations true

Answers

Answer:

what blanks

Step-by-step explanation:

5-(n-4)=3(n+2)
Please help I’ll give brainliest

Answers

If your salving for n it would be n=0.75
If your salving by factoring it is 3/4

Sophia is furniture shopping for her new apartment. She has picked out a bed that costs $1,867, a sofa that is priced at
$3,215, and a dining room table for $1,471. All items include tax. If she wants to get the best estimate for the amount of
money she will need to save to purchase these items, to what place value should she round each item's price?

Answers

Answer:

To the thousandth place


Find the value of x and
y if x-y=3 and 2x+3y=4​

Answers

Answer:

Step-by-step explanation:

Given :

x-y = 3                                equation(i)

2x + 3y = 4                           equation(ii)

Now,

x - y = 3

x = 3 + y

substitute the value of x in equation (ii)

2x + 3y = 4

2(3 + y) + 3y = 4

6 + 2y + 3y = 4

6 + 5y = 4

y = -2/5

x-y=3

2x+3y=4

Using elimination we can multiply the top equation by -2 to Eliminate the x values. Doing this gives us

-2(x-y)= -2(3)

Simplifying we have

-2x+2y=-6
And then adding the second equation, we can have a system of two equations where the x eliminates

-2x+2y=-6
+2x+3y=+4

Adding we get that

5y=-2

Dividing by 5 on both sides gives us y=-2/5

We can substitute this y term in for the first equation. Doing so we have

x-(-2/5)=3

using the a-(-b)=a+b rule we get

x+2/5=3

Thus x=3- 2/5

So using a calculator we can say that x=13/5.

Thus your answers are x=13/5 and y=-2/5

I hope this helps!! Mark for brainliest

One of the legs of a right triangle measures 1 cm and the other leg measures 17 cm.
Find the measure of the hypotenuse. If necessary, round to the nearest tenth.

Answers

Answer:

using phythagoras formula of right angles we can calculate the hypotenuse

1^2=x^2+17^2

x^2=17^2-1^2(transpose)

×^2=288 (introduce a square root)

x=15.01(round of to the nearest tenth)

Step-by-step explanation:

x=10

The measure of the hypotenuse is 17.029

What is Pythagoras Theorem?

If ABC is a triangle with AC as the hypotenuse and angle B with 90 degrees then we have Pythagoras theorem:

|AC|^2 = |AB|^2 + |BC|^2    

where |AB| = length of line segment AB. (AB and BC are rest of the two sides of that triangle ABC, AC being the hypotenuse).

Given;

The legs of a right triangle measures 1 cm

The other leg measures 17 cm

Now,

|AC|^2 = |AB|^2 + |BC|^2    

|AC|^2 = |1|^2 + |17|^2    

|AC|^2 = 1 + 289

AC=17.029

Therefore, by pythagoras theorem answer will be 17.029.

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Can anyone please explain this question to me?
(2√5+3√6)²​

Answers

[tex]\displaystyle \huge \boxed{\mathfrak{Question} \downarrow}[/tex]

[tex] \displaystyle\large \bf( 2 \sqrt { 5 } + 3 \sqrt { 6 } ) ^ { 2 }[/tex]

[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]

[tex] \large \sf( 2 \sqrt { 5 } + 3 \sqrt { 6 } ) ^ { 2 }[/tex]

Use the algebraic identify [tex]\sf\left(a+b\right)^{2}=a^{2}+2ab+b^{2} [/tex]to expand [tex]\sf\left(2\sqrt{5}+3\sqrt{6}\right)^{2}[/tex].

[tex] \large \sf \: 4\left(\sqrt{5}\right)^{2}+12\sqrt{5}\sqrt{6}+9\left(\sqrt{6}\right)^{2} [/tex]

The square of [tex]\sf\sqrt{5}[/tex] is 5.

[tex] \large \sf4\times 5+12\sqrt{5}\sqrt{6}+9\left(\sqrt{6}\right)^{2} [/tex]

Multiply 4 and 5 to get 20.

[tex] \large \sf20+12\sqrt{5}\sqrt{6}+9\left(\sqrt{6}\right)^{2} [/tex]

To multiply [tex]\sf\sqrt{5}[/tex] and [tex]\sf\sqrt{6}[/tex], multiply the numbers under the square root.

[tex] \large \sf20+12\sqrt{30}+9\left(\sqrt{6}\right)^{2} [/tex]

The square of [tex]\sf\sqrt{6}[/tex] is 6.

[tex] \large \sf20+12\sqrt{30}+9\times 6 [/tex]

Multiply 9 and 6 to get 54.

[tex] \large \sf20+12\sqrt{30}+54 [/tex]

Add 20 and 54 to get 74.

[tex] \large \boxed{\bf12 \sqrt{30} + 74 = 139.72..}[/tex]

You take random sample of 200 people from Salinas and find that their average income is $48,000 per year
with a standard deviation of $9000. Also assume that population incomes are normally distributed.
Approximately how many people make between $39,000 and $57,000?
X
Answer format: Enter a positive integer

Answers

We have that  The Total Number of People is

[tex]X\approx 137[/tex]

From the question we are told that

sample of 200

income is $48,000 per year

standard deviation of $9000

Generally the equation for the Ratio of people  is mathematically given as

[tex]Y=P(\frac{39000-48000}{9000}<z<\frac{57000-48000}{9000})\\\\\Y=P(z<1))-(1-p(z-1))\\\\Y=0.8413-0.1582\\\\\Y=0.6826[/tex]

Therefore

The Total Number of People is

[tex]X=0.6826*200\\\\X\approx 137[/tex]

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how much money is spent on the kids

Answers

Answer:

maybe millions till they get older and started making there own money.

Step-by-step explanation:

please mark me brainliest

Factor by grouping
6x^2-12x+x-2
factor completely

Answers

Uh ye here you go stranger hoped this help

Maria had $125.35. She bought 5.25 lbs of meat, which cost $6.20 per lb. How much
money will she be left with after paying for meat?

Answers

Answer:

$102.80

Step-by-step explanation:

First, find the amount of money she used. To find that, you multiply 5.25 by 6.20 which equals to 32.55. Maria spent $32.55 on meat. Then, subtract 135.35 (her starting amount) by 32.55 (the amount she spent on meat). This equals to 102.80 meaning she has $102.80 dollars left.

Solve for b
-3(6b + 4) = 2(-5b+10)
b=

Answers

Answer:

b = -4

Step-by-step explanation:

-3(6b + 4) = 2(-5b + 10)

-18b - 12 = -10b + 20

(-18b + 10b) - 12 = (-10b + 10b) + 20

-8b - 12 = 20

-8b (- 12 + 12) = 20 + 12

-8b = 32

-8b/-8 = 32/-8

b = -4

Answer:

x

Step-by-step explanation:

Evaluate m^2 -4m+2 for m =-2

Answers

Answer:

answer is 6

Step-by-step explanation:

m^2 - 4m + 2

-2(2) - 4(-2) + 2

-4 + 8 + 2

-4 + 10

6

What is the next term in the geometric sequence? 1,4,-16,64

Answers

Answer:

256

Step-by-step explanation:

1,4,16,64,256

As 4 is being multiplied in each case.

help on bothering please !!!!!reaangie nas perimeter
en
is in bana is with 25.
the value of m
En 182
Hn 224
Gn - 12.2
) -
The area of a rectangle is 134 + 2 square
units. The width is 9. The length is 6.
What is the length?
A 6.5
C 15.5
B 13
D 19

Answers

Answer:

6) F

7) B

Step-by-step explanation:

6)

[tex]\boxed{perimeter \: of \: rectangle = 2(length + breadth)}[/tex]

60= 2[½(n -6) +2n +5]

Expand:

60= 2(½)(n -6) +2(2n) +2(5)

60= n -6 +4n +10

Simplify:

60= 5n +4

Minus 4 on both sides:

5n= 60 -4

5n= 56

Divide both sides by 5:

n= 56 ÷5

n= 11.2

Thus, option F is correct.

7)

[tex]\boxed{area \: of \: rectangle = length \: \times breadth}[/tex]

13q +2= 9(q +6)

Expand:

13q +2= 9q +54

Bring q terms to one side, constant to the other:

13q -9q= 54 -2

Simplify:

4q= 52

Divide both sides by 4:

q= 52 ÷4

q= 13

Thus, option B is correct.

Mark all of the statements that are true.
O A. The domain for this function is the set {-5).
I B. The domain for this function is all real numbers.
C. This graph is not a function because the value of y is the same for
every value of x.
D. The range for this function is the set (-5).
I E. All real numbers are in the range of this function.

Answers

The correct statements are B and D
Any real value can be entered into the function but the answer will always be -5

We have the graph of a function (say f(x)).

We have to determine which of the given statements are correct w.r.t this graph of f(x).

What do you mean by domain and range of a function?

The domain of a function f(x) is the set of all values for which the function is defined, and the range of the function is the set of all values that f takes.

According to the question, we have the equation of this line as -

y = -5.

The value of y is constant for every value of x. Therefore, the range of the function is Set → {- 5}.

The function has same value → y= -5 for all values of x, ranging from →

- ∞ to + ∞, Therefore, its domain is the set of all Real numbers.

A function can have same value of y for different values of x.

Hence, Option B and D are correct.

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3 times the difference of a number and 1 is nine more than the same number. Find the number.

Answers

Answer: 6

Step-by-step explanation:

3 (x-1) = x + 9

3x - 3 = X + 9

3x - x = 9 + 3

2x = 12

x = 12/2

x = 6

The correct answer will be "n = 6". A complete solution is provided below.

Let,

The number be "n".

According to the question, the expression will be:

→  [tex]3(n-1)=9+n[/tex]

→     [tex]3n-3=9+n[/tex]

By adding "3" both sides, we get

→  [tex]3n-3+3=9+n+3[/tex]

→              [tex]3n=12+n[/tex]

By subtracting "n" from both sides, we get

→        [tex]3n-n=12+n-n[/tex]

→               [tex]2n=12[/tex]

→                 [tex]n=\frac{12}{2}[/tex]

→                 [tex]n = 6[/tex]

Thus the above is the appropriate answer.

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-6 * -6 + 7 * -6 + 8​

Answers

Answer:

0

Step-by-step explanation:

The * means multiplication where the ^ means exponents, so you multiply in this case.

-6 * -6 = 36

Two negatives equals a positive.

PEMDAS shows that multiplication and division occurs first so...

7 * -6 = -42

36 + -42 + 8

-8 + 8

= 0

You can search it up to see what PEMDAS is.

What could I say for this question anybody who answers this gets brainlist
Answer ASAP!

Answers

Well simply just state ur learning goals are. In my opinion I would keep it short and simple but give a bit of detail to it. At most like 6 sentences should be ok and should work as an answer

List the domain and range of the relation {(7. - 8), (5,5), (0.-8), (5,1) (7.8)}​

Answers

Lets call the above set of points [tex]L[/tex].

The domain is between minimum and maximum of the x-coords points specified,

[tex]\mathrm{min}(L;x)=0[/tex]

[tex]\mathrm{max}(L;x)=7[/tex]

So domain is [tex]D_L=[\mathrm{min}(L;x),\mathrm{max}(L;x)]=[0,7][/tex].

The range is the same story but you look at y values,

[tex]\mathrm{min}(L;y)=-8[/tex]

[tex]\mathrm{max}(L;y)=8[/tex]

So range is [tex]R_L=[\mathrm{min}(L;y),\mathrm{max}(L;y)]=[-8,8][/tex].

Hope this helps :)

The sum of a rational number and an irrational number is irrational.

ALWAYS
NEVER
SOMETIMES

Answers

Answer: Always

Proof:

Let

A = some rational numberB = some irrational numberC = some rational number (that isn't necessarily equal to A)

We'll show that a contradiction happens if we tried to say A+B = C.

In other words, we'll show a contradiction happens for the form rational+irrational = rational.

Because A and C are rational, we can say

A = p/q

C = r/s

where p,q,r,s are integers. The q and s in the denominators cannot be zero.

So,

A+B = C

B = C - A

B = (r/s) - (p/q)

B = (qr/qs) - (ps/qs)

B = (qr-ps)/(qs)

B = (some integer)/(some other integer)

B = some rational number

But wait, we stated that B was irrational. The term "irrational" literally means "not rational". Irrational numbers cannot be written into fraction form of two integers. This is a contradiction and shows that A+B = C is never possible if A,C are rational while B is irrational.

This must lead to the conclusion that A+B must always be irrational if A is rational and B is irrational.

The template is this

rational + irrational = irrational

rational + rational = rational

ALWAYSS
HAVE A GOOD DAY

please view the image to get a better understanding ..im stressing :((
*please include the work to show what Danielle did wrong
What is the sum of x³ + 5x² – 7 and
5x³ – 3x² + 2x – 1?

Answers

Answer:

Daniella didn't do distributive property before she started.

Step-by-step explanation:

([tex]x^{3}[/tex]+5[tex]x^{2}[/tex]-7) + (5[tex]x^{3}[/tex]-3[tex]x^{2}[/tex]+2x-1)

5[tex]x^{6}[/tex]-3[tex]x^{5}[/tex]+2[tex]x^{4}[/tex]-1[tex]x^{3}[/tex]+25[tex]x^{5}[/tex]-15[tex]x^{4}[/tex]+10[tex]x^{3}[/tex]-5[tex]x^{2}[/tex]-35[tex]x^{3}[/tex]+21[tex]x^{2}[/tex]-14x+7

5[tex]x^{6}[/tex]+22[tex]x^{5}[/tex]-13[tex]x^{4}[/tex]-26[tex]x^{3}[/tex]+16x[tex]x^{2}[/tex]-14x+7

Find the distance between the pair of points on the graph below:

Answers

Answer:

the answer is 2 because it is

the answer is two because the points move 2

Someone help please I don’t know how to answer this

Answers

Answer:

12e + 6

Step-by-step explanation:

to simplify, just add the like terms which are the values with the same variable

Answer:

12e+6

Step-by-step explanation:

collecting like terms means out all the matching letters together, so 4e + 8e=123.

2. Describe a situation that could be modeled with the ratio 4: 1.​

Answers

Answer:

u can do something like u have 8 pencils and 2 pens

Step-by-step explanation:

cause two divided by two is four and u only have to divide it once so that how u get that answer

problem in photo 20 characters

Answers

Answer:

Step-by-step explanation:

i dont know  but work hard

(14 − 7)11 [(4 + 3)2]4 Simply

Answers

4+3=7 7*2=14 14-7=7 7*11=77 77*14=1,078 1,078*4=4,312

please help me, if you help then thanks!

Answers

Answer:

[tex] \frac{ - 8 {x}^{3} }{ {y}^{4} } [/tex] (first option)

Step-by-step explanation:

[tex] \frac{ - 32 {x}^{5} {y}^{3} }{4 {x}^{2} {y}^{7} } [/tex]

[tex] \frac{ - 8 {x}^{5} {y}^{3} }{ {x}^{2} {y}^{7} } = \frac{ - 8 {x}^{3} {y}^{ 3} }{ {y}^{7} } [/tex]

[tex] = \frac{ - 8 {x}^{3} }{ {y}^{4} } [/tex]

Kakuro is like a crossword puzzle with numbers.

Answers

9514 1404 393

Answer:

   [[. . 3 6 .][1 3 4 9 .][9 2 . 7 1][. 1 2 8 3][. 4 9 . . ]]

Step-by-step explanation:

It is helpful to remember that the first four digits {1, 2, 3, 4} total 10, and the last four digits {6, 7, 8, 9} total 30. It is also worthwhile to note that the smallest sum of two digits is 3 = 1+2, and the largest sum of 2 digits is 17 = 8+9. Some sums can only be made one way: 4 = 1+3, 16 = 7+9.

Here, we will refer to rows 1-5 from the top down, and columns 1-5 from the left to right.

__

Based on the above, column 5 can only be made one way: 1+3. Column 4 can only be made one way: 9+8+7+6. Then the choices for row 3B will be 1+7 or 5+3. We know it can't be 5+3 because 5 is not part of column 4. This makes our first fill-in (row, column) be (3,4)=7, (3,5)=1, (4,5)=3.

The sum of the remaining cells in row 4 must be 14-3 = 11, and cell (4,4) must be 6, 8, or 9. It cannot be 9, because that would require the remaining two cells to have a sum of 2, which they cannot. So, cell (4,4) is 6 or 8.

Cell (1,4) cannot be 9, either, because we cannot use 0 in cell (1,3). Then the only place for 9 in column 4 is in cell (2,4)=9.

With cell (1,4) being restricted to 6 or 8 (the two remaining numbers in column 4, cell (1,3) must be 3 or 1, and cell (2,3) must be 4 or 6. It cannot be 6 because that would require a sum of 2 in the first two cells of row 2, so (2,3)=4, (1,3)=3, and (1,4)=6. This makes (4,4)=8 and the remaining two cells of row 4 must be 1 and 2. 1 cannot go in (4,3), so we must have (4,3)=2 and (5,3)=9, (5,2)=4, (4,2)=1. That leaves 2 and 3 for rows 2 and 3 of column 2. The first two cells of row 2 must total 4, so must be 1 and 3. Cell (2,2) cannot be 1, so must be 3, leaving (2,1)=1, (3,1)=9, (3,2)=2 and that completes it.

The fill-ins are ...

   [. . 3 6 .]

  [1 3 4 9 .]

  [9 2 . 7 1]

  [. 1 2 8 3]

  [. 4 9 . . ]

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Find the x-intercept and y-intercept for the graph of 27x - 18y = 54A. x-intercept = 0.5, y-intercept = 0.3 B. x-intercept = 2, y-intercept = -3 C. x-intercept = 3, y-intercept = -2 D. x-intercept = 4, y-intercept = 3 Question 6 of 10A historian determines that the harsh policies of northern Republicans duringReconstruction caused the eventual Democratic backlash. Which of thefollowing skills is he or she most clearly using?A. Identifying cause-and-effect relationshipsB. SummarizingC. Comparing and contrastingD. Drawing inferencesplease help Please solve correctly and I will mark brainliest What is the solution to the following system?X+2y+z=9X-y+3z=132z=10 look at these students ID cards from the international club. then complete the sentences that follow Write the expression (7)(7)5555 using exponents. What are two examples of why Catherine Great was an enlightened despot? Mrs. Rosanky'sO Plural. properPlural, commonO Possessive, properSingular, common Maria works at Health Medical Center and her responsibilities include answering the phone. How should she answer the phone?a. Health Medical Center, how can I help you?b. Health Medical Center, Maria speaking.c. Hello, Maria speaking.d. Good afternoon, Health Medical Center. Referring to the figure, find m1 Use the graph to determine a. The function's domain; b. The functions range; c. The x-intercepts, if any; d. The y-intercept, if any; and e. The missing function values, indicated by question marks, below. F(-2)=? F(2)=? If XR is (2x + 5) inches long and RY is 22 inches long, whatis the value of x? What about XR? What about XY?helpp Need help!?!?!?!?!?!?!?!?!?? Does anyone see the missing apostrophe? There should be 2 missingHas a moth ever ruined one of your sweatshirts or sweaters? If so, you might be able to prevent future incidents by knowing the difference between a moth and a butterfly. Recognizing the difference wont be easy. First, look at the insects feelers. If theyre thin, they belong to a butterfly. A moths feelers are usually broad and feathery. Next, observe the insect when its resting. Butterflies wings are folded in an upright position, with the wings undersides facing you. A moth sits holding its wings horizontally, with only the upper sides of the wings showing. Hopefully this helps, but if it doesn't, youd better buy a winters supply of mothballs! (8.11107)(4.3107) A substance occupies one half of an open container. The atoms of the substance are closely packed but are still able to slide past each other.What is most likely the phase of the substance?gasliquidsolid and gasliquid and solid A submarine is locatedat 20 feet below sealevel. It rises 5 feet, butthen descends 18 feet.What is the depth ofthe submarine? Crane Company had these transactions during the current period. June 12 Issued 79,500 shares of $1 par value common stock for cash of $298,125. July 11 Issued 3,650 shares of $105 par value preferred stock for cash at $113 per share. Nov. 28 Purchased 3,200 shares of treasury stock for $8,800.Prepare the journal entries for the Crane Company transactions shown above. someone pls helpppppppppp PLEASE HELP 1. What qualities do you think are important for a scientist to have? Give anexample of how one of these qualities is shown in your own approach to yourschoolwork. Answer in two to three paragraphs. (10 points) Think about what ascientist does in order to obtain reliable information. Do you do any of thesethings?