Which set of ordered pairs represents a function?

{(5, -8), (8,-1), (8,7), (-4,2)}

{(-9,-9), (7, -9), (-7, -7), (9,-8)}

{(4,7), (-7,-4), (6,8), (-7,6)}

{(0,8), (-7,2), (4, -9), (4, -3)}

Answers

Answer 1

Answer: The second one

Step-by-step explanation:

That's the only set where there is only one output for every input.


Related Questions

Can someone please help me (giving brainliest to whoever is right)

Answers

I can help, but would need to know what you need help on.

When analyzing an argument, the first task is to identify its premise or premises and its conclusion. Conclusion indicators are words or phrases that can help you identify which statement in an argument is the conclusion.Each argument shown next uses a conclusion indicator. Identify the conclusion indicator and the argument's conclusion. Type the indicator word or phrase into the space provided, and then select which statement best represents the argument's overall conclusion.Argument ASilver cars are more likely to be pulled over than any other kind of car. This is because there are more silver-colored cars on the road than any other kind of car. Kari drives an average-looking silver car to and from work everyday. We may infer that Kari is more likely to be pulled over.From this argument, type the conclusion indicator word or phrase here:Which statement best represents the conclusion of the argument?Kari is more likely to be pulled over.Kari drives an average-looking silver car to and from work everyday.Silver cars are more likely to be pulled over than any other kind of car.There are more silver-colored cars on the road than any other kind of car.Argument BScissors are not a toy. If you run with scissors, then you could get hurt. You could poke your eye out or cut yourself with the scissors if you fall. For these reasons, you should never run with scissors.From this argument, type the conclusion indicator word or phrase here:Which statement best represents the conclusion of the argument?You could poke your eye out or cut yourself with the scissors if you fall.If you run with scissors, then you could get hurt.Scissors are not a toy.You should never run with scissors.Argument CWe know that the natural world is governed by scientific laws of regularity. Those laws express predictable relationships that do not allow any wiggle room for variant outcomes. So, humans do not have free will. This is because the human body is as much a part of the natural world as any other physical object.From this argument, type the conclusion indicator word or phrase here:Which statement best represents the conclusion of the argument?Humans do not have free will.The natural world is governed by scientific laws of regularity.The human body is as much a part of the natural world as any other physical object.Scientific laws express predictable relationships that do not allow any wiggle room for variant outcomes.

Answers

In Argument A the conclusion indicator  is "we may infer that" and the conclusion  is Kari is more likely to be pulled over.

In Argument B the conclusion indicator  is "For these reasons" and the conclusion  is You should never run with scissors.

In Argument C the conclusion indicator  is "So" and the conclusion  is Humans do not have free will.

To identify the conclusion of each argument, we can either separate the premises (examples of the author's opinion) from the entire argument or we can identify the conclusion indicators.

Some conclusion indicators include:

therefore, thus, hence, so, for these reasons, we may infer, as a result,consequently, etc

Argument A:

conclusion indicator = we may infer that

Conclusion = Kari is more likely to be pulled over.

Argument B:

conclusion indicator = For these reasons,

Conclusion = You should never run with scissors

Argument C:

conclusion indicator = So,

Conclusion = Humans do not have free will

Learn more here: https://brainly.com/question/14583700

turn 5/9 into a decimal.​

Answers

5/9 to a decimal would be .5 repeated

The answer is .5 repeated

Do not put your answer as .5 because .5 is 5/10

A proper answer can be something like "0.5 repeated, 0.5555..., or .5 with a line over the 5"

brainiest to whoever right

Answers

Answer:

The area is 7.5 square units

Any mathematician am giving brainliest for this question

Answers

9514 1404 393

Answer:

  (x, y) = (1/2, 1)

Step-by-step explanation:

Subtract twice the second equation from the first to eliminate the x-variable.

  (2/x +3/y) -2(1/x -4/y) = (7) -2(-2)

  11/y = 11 . . . . . . . simplify

  y = 1 . . . . . . . . multiply by y/11

__

Substituting into the second equation gives ...

  1/x -4/1 = -2

  1/x = 2 . . . . . . add 4

  1/2 = x . . . . . . multiply by x/2

The solution is (x, y) = (1/2, 1).

_____

Additional comment

The attached graph seems to show that the graphs of the two equations also intersect at (x, y) = (0, 0). However, careful consideration of these equations leads to the conclusion that x=0 and y=0 are not in the domain of either equation. (Division by 0 is undefined.) So, the only solution is (x, y) = (1/2, 1).

If you were to multiply both equations by xy to eliminate fractions, you would, indeed, arrive at the conclusion that (x, y) = (0, 0) is a solution. As we noted, that "solution" is extraneous. Whenever you multiply an equation by an expression that can have the value 0, you need to be careful to exclude any "solution" that makes that expression 0.

Kelsey solved the following equation:

7x − one over two (8x + 2) = 6

Step Work Justification
1 7x − 4x − 1 = 6
2 3x − 1 = 6
3 3x = 7
4 x = 7 over 3
Which of the following has all of the correct justifications Kelsey used to solve this equation?

Question 8 options:

1. Distributive property 2. Combine like terms 3. Addition property of equality 4. Division property of equality


1. Multiplication property of equality 2. Combine like terms 3. Addition property of equality 4. Division property of equality


1. Distributive property 2. Combine like terms 3. Subtraction property of equality 4. Division property of equality


1. Multiplication property of equality 2. Combine like terms 3. Subtraction property of equality 4. Division property of equality

Answers

9514 1404 393

Answer:

  (a) 1. Distributive property 2. Combine like terms 3. Addition property of equality 4. Division property of equality

Step-by-step explanation:

Replacement of -1/2(8x +2) by -4x -1 is use of the distributive property, eliminating choices B and D.

In step 3, addition of 1 to both sides of the equation is use of the addition property of equality, eliminating choice C. This leaves only choice A.

_____

Additional comment

This problem makes a distinction between the addition property of equality and the subtraction property of equality. They are essentially the same property, since addition of +1 is the same as subtraction of -1. The result shown in Step 3 could be from addition of +1 to both sides of the equation, or it could be from subtraction of -1 from both sides of the equation.

In general, you want to add the opposite of the number you don't want. Here, that number is -1, so we add +1. Of course, adding an opposite is the same as subtracting.

In short, you can argue both choices A and C have correct justifications. The only reason to prefer choice A is that we usually think of adding positive numbers as addition, and adding negative numbers as subtraction.

Answer:1. Distributive property 2. Combine like terms 3. Addition property of equality 4. Division property of equality

Step-by-step explanation:

A town has received about 49 inches of rainfall each year for the last 122 years. About how many inches of rain is this?

Answers

Answer:

5,978 inches

Step-by-step explanation:

you multiply 49 inches of rainfall by how many years it's been doing it for and you get 5,978

5,978 is what I got

Help please due today

Answers

Answer:

the scale factor is greater than 1

hope this helps!:)

HELP PLS!! D:
The net of a rectangular prism is shown below. What is the total surface area of this prism?

A. 112 cm²
B. 142 cm²
C. 105 cm²
D. 71 cm²

Answers

Answer:   142 cm^2  (choice B)

=========================================================

Explanation:

Think of unwrapping a present and doing so without any unnecessary tearing. That means there aren't any little small pieces thrown away. There are many ways to unwrap a 3D box, and this diagram shows one of many ways. This flat layout is the 2D version of the 3D surfaces.

To find the surface area of the 3D figure, we simply need to find the area of each rectangle in this 2D flat net. Once we know all the little areas, we add them up to get the surface area.

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

The lowest rectangle is 3 cm by 5 cm, so its area is 3*5 = 15 cm^2. Let A = 15 so we can use it later.

Let's move to the middle row of four rectangles. From left to right, we have these four rectangular areas

3*7 = 21 cm^25*7 = 35 cm^23*7 = 21 cm^25*7 = 35 cm^2

I'll call these results B,C,D,E in the order given above. So B = 21, C = 35, etc.

The rectangle up top has area of 3*5 = 15 cm^2. I'll let F = 15

Lastly, we'll add up the sub-areas to get the grand total

A+B+C+D+E+F = 15+21+35+21+35+15 = 142 cm^2 is the surface area

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

Another pathway to the answer:

If you can picture how this flat diagram would fold up, then you would see that we'd get a 3D block with the following dimensions

L = 7 cmW = 5 cmH = 3 cm

The order of L,W,H doesn't really matter.

Then we can use the 3D block surface area formula like so

SA = 2*(LW + LH + WH)

SA = 2*(7*5 + 7*3 + 5*3)

SA = 2*(35 + 21 + 15)

SA = 2*71

SA = 142 cm^2 is the surface area

As you can see from the third step, we have "35", "21" and "15" show up again. The 2 out front is because we have 2 copies of each item mentioned.

A sample of single celled marine algae from the Giant Stairs site provided an estimate of 100,000 cells on the initial sampling date. Ten days later, the population size was estimated to be 600,000 cells. Calculate the per capita rate of increase (r) for the population.

Answers

9514 1404 393

Answer:

  r ≈ 19.6% per day

Step-by-step explanation:

The growth of the population can be modeled by ...

  P = P0 × (1 +r)^t

where P0 is the initial population, r is the growth rate (per day), and t is the number of days. Using the given numbers, we can find r to be ...

  600,000 = 100,000 × (1 +r)^10

  6^(1/10) = 1 +r

  r = 6^0.1 -1 ≈ 0.196231

The growth rate per day is about 19.6%.

All the applicants chose at least one of the three countries Egypt, Ghana and South Africa. A total of 2417 applicants chose Egypt as their favorite destination; 3500 applicants chose Ghana or South Africa as their favored destination. Of those that chose Egypt, 1233 also chose Ghana. 1031 applicants chose Ghana and South Africa, while 2014 chose Egypt or South Africa but not Ghana. Only 565 applicants indicated their preference for Egypt and Ghana but not South Africa. If 1803 did not indicate Egypt as their preferred destination, obtain the following:
The total number of applicants assessed. (5 marks)
The number of applicants who chose each of the three destinations only. (3 marks)
The most popular of the three destinations. (2 marks)​

Answers

Answer:

hard quiz

Step-by-step explanation:

An insurance company’s records indicate that the mean compensation paid to clients claiming on motor insurance is R10 800 with standard deviation R2 500. Suppose that 50 claims are made within one week. What is the probability that the mean compensation paid is less than R10 200?

Answers

Answer:

10800

Step-by-step explanation:

Write the equation of the line that passes through (6,8 ) and (2,4).

Answers

Answer:

y = x + 2

Step-by-step explanation:

The slope of the given points (6, 8) and (2, 4) is m = 1.

The y-intercept found through the slope, m = 1, is b = 2.

So, m = 1 and b = 2, right?

Let's put this together into the formula y = mx + b, we'll get: y = x + 2

I need help ASAP thanks!​

Answers

The decimal for the first one is 0.4, and the fraction is 2/5.

The second one is also 0.4 and 2/5.

Yes, this means that both of these models are equal to each other. This is because Model 1 is equal to 4/10, while Model 2 is equivalent to 40/100. 4/10 is the same thing as 40/100, though. It's just a little bit more simplified, but the fully simplified answer would be 2/5.

So, therefore, the final answer is that both of these models are equal.

Anyways, I hope that this has helped you.

Helppppppp pleaseeee

Answers

The answer for this question is 1

The average price of a 0.5- carat round diamond is $3700 and the average price of a 0.75- carat diamond is $4950. If the weight and the price of the diamond is linearly related, how much will a 2.5 -carat round diamond cost?

Answers

Since the problem stated the weight and price are in a linear relationship, we can use y=mx+b.

First, let's calculate our slope.

m = (4950-3700)/(0.75-0.5) = 5000

Now, let's solve for b.

3700 = 5000(0.5) + b

Simplify the right side of the equation.

3700 = 2500 + b

Subtract 2500 from both sides

1200 = b

Now our equation looks like this:

y  = 5000x + 1200

Let's plug 2.5 in for x to solve for the diamond cost.

y = 5000(2.5) + 1200

Simplify the right side.

y = 13700

The average price of a 2.5 carat diamond is $13700

What expression is this equivalent to -4x^2 + 2x - 5(1 + x)

Answers

Answer:

-4x^2 -3x - 5

Step-by-step explanation:

-4x^2 + 2x - 5(1 + x)

Distribute

-4x^2 + 2x - 5 -5x

Combine like terms

-4x^2 -3x - 5

HELP ASAP I WILL GIVE BRAINLIEST

Answers

Answer:

20 x 6

Step-by-step explanation:

23 x 6 = 138

We already have 3 x 6 on the right side, however, so subtract 3 x 6 or 18 from 138:

138 - 18 = 120

Now we have to fill in the blank with an answer that, when multiplied, equals 120 so that the equality is true.

The only option that works out to 120 is the second option, 20 x 6.

Answer:

(20×6)

Step-by-step explanation:

23×6=(20×6)+(3×6)

138=120+18

138=138

Solve UW. how do I get the answer?

Answers

Answer:

UW = 67

Step-by-step explanation:

UW = 6x - 35

VW = 4x - 20

UV = 19

So that means

4x - 20 + 19 = 6x - 35

4x - 1 = 6x - 35

-1 = 2x - 35

34 = 2x

x = 17

6(17) - 35

102 - 35 = 67

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

Step-by-step explanation:

19 + ( 4x - 20 ) = 6x - 35

4x - 1 = 6x - 35

2x = 34

x = 17

UW = 6(17) - 35 = 67

497 + 184

A. 581
B. 671
C.681
D.571

Answers

Answer:C. 681Hope this helps!! <3

Answer:c

Step-by-step explanation:

Select the TRUE statement below regarding aggregate supply in the long and short run.

O if production is below the LRAS, it will eventually have to fall back.

In the long run, changes in price will affect output.

O In the short run, there is no relationship between price level and RGDP.

O The discovery of new resources can cause the LRAS curve to move.

Answers

C. ....................

Regarding aggregate supply in long and short run (C) is the correct option.

What is aggregate supply ?

The whole supply of goods and services produced within an economy at a certain overall price in a given period is known as aggregate supply, also known as total output.

What is the TRUE statement below regarding aggregate supply in the long and short run ?

During short run there is no relationship between price level and RGDP.

The intersection of the aggregate demand and short-run aggregate supply curves determines real GDP and price level in the short run. However, keep in mind that in the near run, sticky pricing may impede the economy from attaining its natural level of employment and output.

Hence we can say that In the short run, there is no relationship between price level and RGDP , (c) option is the correct answer.

Learn more about the aggregate supply at

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Ernie writes this problem:

525 divided by 1500



Which expressions represent Ernie's problem?

Select each correct answer.

1500|525

525
____
1500

525Divied by 1500

525|1500

1500
____
525

Answers

Answer:

Pretty sure it would be 525/1500

Step-by-step explanation:

Read the problem outloud and you would hear that 525 is divided BY 1500, so 525 goes on top of the line since it is being divided by 1500. hope this helps!

Answer:

525 ÷ 1500

1500/525

525

-------

1500

are the correct answers.

Step-by-step explanation:

Blue whales eat an average of 5,000 pounds of fish daily, with a standard deviation of 850 pounds. Approximately what percentage of blue whales eat more than 5,850 pounds of fish?

1.59%
15.87%
31.74%
84.13%

Answers

Answer:

31.74%

Step-by-step explanation:

..........................

Answer:

B) 15.87%

I got full points on this question!! It's correct!

Can someone please show me how to solve (-6)=-x+b with steps?

Answers

Answer:

x = 6+b

Step-by-step explanation:

-6 = -x+b

Subtract b from each side

-6-b = -x+b-b

-6-b = -x

Multiply each side by -1

6+b = x

Which equation should be used to graph [tex]y=sec^{-1} (x)[/tex] on a calculator?
[tex]y = \frac{1}{sec(x)} \\y=\frac{1}{cos^{-1} (x)} \\y=sec(\frac{1}{x} )\\y=cos^{-1} (\frac{1}{x} )[/tex]

Answers

9514 1404 393

Answer:

  (d)  y = arccos(1/x)

Step-by-step explanation:

You are given y = arcsec(x), which means sec(y) = x = 1/cos(y). Then ...

  cos(y) = 1/x

  y = arccos(1/x) . . . . . matches choice D

whats 1+(3x3)???? HELP I WILL GIVE BRAINLIEST !!!!

Answers

Answer:

[tex]1 + (3 \times 3) = 1 + 9 = 10 \\ thank \: you[/tex]

Answer:

its 10

Step-by-step explanation:

1+(3x3)

1+(9)

10

plz give brainliest im tryna level up

Type the correct answer in the box. Use numerals instead of words.
Consider this expression.
| m^2+n^2 |

When m= -5 and n= 3, the value of the expression is ____.

**I answered 16 and it was wrong**

Answers

The value of the expression | m^2+n^2 | at m = -5 and n = 3 is 34.

Given,

| m^2+n^2 |

We need to find the value of this expression at m = -5 and n = 3.

What is the modulus of x?

The modulus of x is given as |x|.

The modulus of a negative x is also positive.

|-x| = x

How do we find an expression at a given point?

Example:

x + 2  at x = 1

= 1 + 2

= 3

Find the value of | m^2+n^2 | at m = -5 and n = 3.

| m^2+n^2 |

= | (-5)² + (3)² |

= | 25 + 9 |

= | 34 |

= 34

Thus the value of the expression | m^2+n^2 | at m = -5 and n = 3 is 34.

Learn more about finding the value of an expression at a point here:

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NO LINKS OR ANSWERING QUESTIONS YOU DON'T KNOW!!!

Water flows out of a hose at a constant rate. After 2 1/3 minutes, 9 4/5 gallons of water have come out of the hose. At what rate, in gallons per minute, is water flowing out of the hose?

Answers

Time taken:  2[tex]\frac{1}{3}[/tex] minutes = 7/3 minutes

Water released: 9[tex]\frac{4}{5}[/tex] gallons = 49/5 gallons

Rate of water flowing out:

Rate(in gallons/minute) = Water released (in gallons) / Time Taken (in minutes)

plugging the given values

Rate = [tex]\frac{\frac{49}{5} }{\frac{7}{3} }[/tex] = [tex]\frac{49}{5} * \frac{3}{7}[/tex]

Rate = 21/5 = 4.2 gallons/minute

Answer:

Time taken: 2\frac{1}{3}

3

1

minutes = 7/3 minutes

Water released: 9\frac{4}{5}

5

4

gallons = 49/5 gallons

Rate of water flowing out:

Rate(in gallons/minute) = Water released (in gallons) / Time Taken (in minutes)

plugging the given values

Rate = \frac{\frac{49}{5} }{\frac{7}{3} }

3

7

5

49

= \frac{49}{5} * \frac{3}{7}

5

49

7

3

Rate = 21/5 = 4.2 gallons/minute

Step-by-step explanation:

i hope it helps

in a survey of 120 people it was found that 65 people like Messi and 60 like Ronaldo while 20 donot like both. by drawing Venn diagram find the number of people who like both Messi and Ronaldo​

Answers

Answer:

15.

(P.S: Messi is the greatest footballer of all time) :)

To get the number of people who like both Messi and Ronaldo, you will add the two figures and the remain 20 that is not in the box minus x =120

Match the line described on the left with the slope of the line on the right. y = 3‐--------------------------------------undefined 9x – 3y = 18.--------------------------,------- - 2 the line through (5, 7) and (5, – 8) -------0 the line through ( – 4, – 1) and (-1,–7)--- 3. ​

Answers

Answer:

y=3, 0; 9x-3y=18, 3; line through (5, 7) and (5, – 8), undefined; the line through ( – 4, – 1) and (-1,–7), -2;

Step-by-step explanation:

y=3 is a horizontal line so the slope is 0

9x-3y=18 can be written as 3y=9x-18 or y=3x-6 so the slope is 3

the line through (5,7) and (5,-8) is a vertical line since the x value didnt change between the two points so the slope is undefined

we have to find the slope of the line through ( – 4, – 1) and (-1,–7). to do this use the formula (y_2-y_1)/(x_2-x_1)=(-7-(-1))/(-1-(-4))=(-7+1)/(-1+4)=-6/3=-2 so the slope is -2

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