Which relation is a function?


{(5, 0), (0, 1), (5, 2), (4,4)}

{(0, 1), (−4, 1), (4, 2), (−4,−1)}

{(3, 2), (2,1), (−1, 2), (3,3)}

{(1, 2), (2,4), (−1, 2), (0,3)}

Answers

Answer 1

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

D) {(1, 2), (2,4), (−1, 2), (0,3)}

»»————- ★ ————-««  

Here’s why:  

A function is a relation in which one element of the domain is assigned to exactly one element of the range. This means that the domain (x) values must not repeat.

⸻⸻⸻⸻

Option A's answer is incorrect, as the domain value of '5' repeats.

{(5, 0), (0, 1), (5, 2), (4,4)}  

⸻⸻⸻⸻

Option B is not a function due to the repeating '-4' value.

{(0, 1), (−4, 1), (4, 2), (−4,−1)}

⸻⸻⸻⸻

The '3' in option C's given relation repeats.

{(3, 2), (2,1), (−1, 2), (3,3)}

⸻⸻⸻⸻

Option D is the correct answer, as there are no domain values that repeat.  

{(1, 2), (2,4), (−1, 2), (0,3)}

Therefore, option D is a function.

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  


Related Questions

5/8 + 3/4
_______
-2/3 - 5/6

Answers

Answer:

- 11/12

Step-by-step explanation:

5/8 + 3/4

_______ x 24/24

-2/3 - 5/6

15+18

= ______

-16-20

33

= _____

-36

= - 11/12

The ratio of the number of laps Tonya swam last week to the number of laps Randy swam last week is 3:10. If Randy swam 84 MORE laps last week, how many did Tonya swim?

Answers

Answer:

The number of laps Tonya swam last week were:

36 laps.

Step-by-step explanation:

To understand the ratio, you must know that 3:10 means that each time Tonya swam 3 laps, Randy swam 10 laps, by this reason, to identify the total number of laps you can divide the total difference given in the exercise (84 laps) into the difference indicated by the ratio (10 - 3 = 7 laps):

84 / 7 = 12

This number obtained is the number of times the ratio had to be met so that the difference in laps swam was 84. Now, you must multiply the obtained value (12) by the number of laps from Tonya given in the ratio (3):

Tonya's total number of laps = 12 * 3Tonya's total number of laps = 36 laps

As you can see, with the calculates, we obtained  36 laps in total. You could also do the iterations 12 times, subtracting the number of turns given by Tonya from the number of turns made by Randy and you would get the same result:

10 - 3 = 720 - 6 = 1430 - 9 = 2140 - 12 = 2850 - 15 = 3560 - 18 = 4270 - 21 = 4980 - 24 = 5690 - 27 = 63100 - 30 = 70110 - 33 = 77120 - 36 = 84

Find X in the given figures.

Answers

The correct answer is 6

On a map, the scale is 1 inch = 125 miles. What is the actual distance between the two cities if the map distance is 2 3/4 inches?

Answers

Answer:

343.75 miles

Step-by-step explanation:

2.75 * 125 = 343.75

There is a ratio of
1 : 125

And we need to get to

2 3/4 : x

so to get from 1 to 2 3/4 we would multiply by 2 3/4. So simply, we would just need to multiply 125 by 2 3/4 as well.

125(2 3/4) = 343 3/4 or 343.75 miles

Find the center and radius of a circle with the equation x² + y2 +6x–8y +16= 0.
a. (-3, 4);r=3
b. (3,-4);r=3
c. (-3, 4);r=9
d. (3,-4);r=9

Answers

The answer would be (3,-4);r=3

Explain how making a table helps to compare two or more sets of data that have been presented in different ways.

Answers

Answer:

By easing the ranking and colerration of the data

Answer: a table is an organized way of displaying data

all data in a table has the same format

you can see how output of a data set changes by looking at a column

you can compare outputs of different functions that have the same input by looking at rows

Step-by-step explanation: edge 2022

Please show work, help me please,

Answers

Answer:

377

Step-by-step explanation:

f(x) = 3* 2^(x+2) -7

Let x=5

f(x) = 3* 2^(5+2) -7

Parentheses first

f(x) = 3* 2^(7) -7

Then exponents

f(x) = 3* 128 -7

Then multiply

f(x) = 384 -7

Then subtract

f(x) = 377

Answer:

377

Step-by-step explanation:

3×2^x+2 -7

plug in 5 for x

3×2^5+2 -7

3×2^7 -7

377

Jan spent 34 hours doing homework last week. She spent
54 hours doing homework this week. How many more
hours did Jan spend on homework this week than last
week?
a. 14 hour
b. 1 hour
c. 14 hours
d. 11 hours

Answers

answer:
20 hours

step-by-step explanation:
54 - 34
20

WILL GIVE BRAINLIEST IF ANSWERED CORRECTLY

Answers

Answer:

A) 13.4 feet

Step-by-step explanation:

You need to use the Pythagorean theorem:

L = [tex]\sqrt{6^2+12^2}[/tex] = 13,4 feet

It’s is 13.4 here is the steps to show

4. Elsa mixed 2 cups red paint with 1 cup blue paint to make purple paint. If she needs more purple
paint and uses 2 cups cup red paint, how much blue paint should she mix with it?

Answers

Elsa would need to mix 2 more cups of blue paint.
2 > 1
2 + 2 = 4
4 > 2

Need urgent help, will give brainliest for honest help

Answers

I'll do the first two to get you started

See the diagram below for the filled out answers.

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

Problem 1

You are correct in saying that 10 goes in the first box. This is from 2*5 = 10 when you apply the distributive property a*(b+c) = a*b+a*c.

For the next box, you'll have x go inside it. This is because we subtract 2x from both sides and then note how 3x-2x becomes x. This x is found on the right side of the third line.

For the last box, we have 9 go inside it. This is from subtracting 1 from both sides, so 10-1 becomes 9.

Answers:

10x9

in that order

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

Problem 2

We add 2y to both sides so that 3y becomes 5y. Ie, 2y+3y = 5y

As a way to check the answer, note how 5y is on the left side of line 2.

Then we'll add 4 to both sides. So 6 updates to 6+4 = 10 on the right side. We type 10 in the second box.

The last step is to divide both sides by 2. The equation 5y = 10 solves to y = 2

Answers:

5y102

in that order

See the diagram below for the filled out answers.

The two quadrilaterals are similar. Write a proportion and solve for MN in the image above

Answers

Answer:

MN=2.5cm

Step-by-step explanation:

4/2=6/3=8/4=k=2

MN=5/2=2.5cm

Hal says the volume of the sphere shown below is 36 cm3. Find the correct volume, using 3.14 for π. Round to the nearest hundredth. What was Hal's likely error? Use the drop-down menus to explain your answer.

Answers

This question is incomplete

Complete Question

Hal says the volume of the sphere shown below is 36 cm³.Find the correct volume, using 3.14 for π. Round to the nearest hundredth. What was Hal's likely error? Use the drop-down menus to explain your answer.

Radius of the sphere = 3 cm

Answer:

a) The volume of the sphere = 113cm³

b) Hal's likely error was :

He used the wrong formula and did not make use of π = 3.14 in his calculation.

Step-by-step explanation:

a) The Volume of a Sphere = 4/3πr³

The radius of the sphere = 3cm

π = 3.14

The volume of the sphere = 4/3 × 3.14 × 3³

= 113.04 cm³

Approximately to the nearest hundredth = 113cm³.

b) Hal's likely error comes in two forms:

1) He used the wrong formula which is Surface area of the sphere(4πr²) in his calculation instead of the right formula which was the Volume of a Sphere(4/3πr³)

ii) Also he did not use π in his calculation.

This means Hal's calculation=

Surface Area of a Sphere = 4πr²

But Hal's used = 4r²

Where r = 3cm = 4 × (3cm)²= 36 cm³

This is wrong.

2x−15y=−10 −4x+5y=−30
Solve the following system for y:

Answers

Answer:

10

Step-by-step explanation:

multiply the first equation by 2 in order to be able to cancel out the -4z and the 2x

4x-30y=-20

-4x+5y=-30

50y+5y = -20+(-30)

55y=-50



The average number of games a player has appeared in the 2021 NBL games as of now is about 40 games
with a standard deviation of 10 games. Determine what percent of players have appeared in 45-56 games,
write as a percent with two decimal places.

Answers

It would be 100% thanks for asking

Perform the operation.
(4x^2 + 6x + 7) - (-8x^2 – 2x + 6)

Answers

[tex]12 {x}^{2} + 8x + 1[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}[/tex]

[tex](4 {x}^{2} + 6x + 7) - ( - 8 {x}^{2} - 2x + 6) \\ = 4 {x}^{2} + 6x + 7 + 8 {x}^{2} + 2x - 6 \\ = 4 {x}^{2} + 8 {x}^{2} + 6x + 2x + 7 - 6 \\ = 12 {x}^{2} + 8x + 1[/tex]

[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]

hey! i’ll give brainliest please help

Answers

Answer:

It would be a simple sentence, since it is a single clause by itself.

Note that this is something for the Language Arts section, please post your questions of that topic in that section, not in the Math section.

There are 5 apartments in an apartment building. The rent for each apartment is $766 per month. How much rent does the owner of the building receive each month?

Answers

766 x 5 = 3830 because there are five apartment rooms and he gets 766 per room so you just multiply

Helpp me plssssss????

Answers

Answer:

C

Step-by-step explanation:

The radius is 4 making the diameter 16 you need the other side since in half so that leaves you with answer C...16[tex]\pi yd^2[/tex]

Can someone help me please

Answers

Answer:

The answer is 4

Simplify expression and can you explain how

Answers

Answer: 64r^36

Step-by-step explanation:

On picture below

Please help this is for a project: The stimulus check is a one time $1,200 pay out and the unemployment check is $600 per week
for a maximum of 16 weeks. Make an equation that can be used to find y, the amount of money in your
account after x number of weeks of getting unemployment checks.
Can b an x be greater than 16? What is a mathematical way to show that?

Answers


y=600x+1200

x cannot be greater than 16 because the maximum amount of weeks is 16.
mathematical way: x is less than or equal to 16 (also there’s a picture to show what I mean)

There is a prism with a pentagonal base the height is 8 cm the area of the pentagonal base is 30.5cm what is the volume of the prism

Answers

Answer:

244 cm³

Step-by-step explanation:

Step 1: Given data

Height of the prism with a pentagonal base (h): 8 cm

Area of the pentagonal base (A): 30.5 cm²

Step 2: Calculate the volume of the prism with a pentagonal base

We have a regular pentagonal prism, that is, the 5 sides of the base are equal and we know the area of the base and the height of the prism. We can calculate its volume using the following expression.

V = A × h

V = 30.5 cm² × 8 cm = 244 cm³

please help. I will give brainliest. ​

Answers

Answer:

x = 77, y = 42

Step-by-step explanation:

y + 31 = 73 via parallel, y = 42

x + y + 61 = 180 via triangle angle sum, x = 77

Answer:

y=42

x=77

Step-by-step explanation:

Is the question below a statistical question?
Do teachers make more money than nurses?

Yes or no please answer !!​

Answers

Answer:

no

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

Multiply and divide the following fractions. Remember to invert the divisor and then multiply the fractions.

1/2 x 2/3
1 1/2 x3/4
4/4 x 7/6
3 divided by 1/2
2/3 divided by 1/2

Answers

Answer:

1/2 x 2/3 = 0 . 3

1 1/2 x3/4 = 1. 125

4/4 x 7/6 = 1 . 27  

3 divided by 1/2 = 6

2/3 divided by 1/2 = 1. 3

Step-by-step explanation:

1/2 x 2/3

= 0.33333333333

= 0 .3

1 1/2 x3/4

= 1.125

4/4 x 7/6

= 1.16666666667

= 1.27

3 divided by 1/2

= 6

2/3 divided by 1 / 2

= 1.33333333333

= 1. 3

Hope this answer helps you :)

Have a great day

Mark brainliest

Answer:

1. 5/6

2. 5/8

3. 29/44

4. 3/8

5. 2/15

6. 0.3

7. 1.125

8. 1.27

9. 6

10. 1.3

11. 345,000

12. 128,000

13. 42

14. 40

15. $365.47 and $365

16. $125.66 and $126.

Step-by-step explanation:

-2x + 3y = 18. x = -y + 1

Answers

Answer:

D. X=-3, y=4

Step-by-step explanation:

-2x+3y=18 equation 1

x=-y+1 equation 2

-2(-y+1)+3y=18 replace x value of equation 2 into equation 1

2y-2+3y=18

5y=20

y=4

solve for x by replacing y value into either equation.

x=-y+1

x=-4+1

x=-3

What is the value of x in this figure?
10
O 5
o 5V2
30°
103
O
X
o 513
18
19 20 21
22 23 24 25 26

Answers

Answer:

5√3

Step-by-step explanation:

Thanks to the given information we can say that the smallest leg is 5 because the triangle is half of an equaliteral one.

for the same reason we can say that x is 5√3 that is the simplest from of the result of the Pytaghorean theorem

Matthew has 30 Starbursts. Twelve are yellow and the rest are red. What is the ratio of yellow starbursts to red?

Answers

Answer is 2:3.

~Refer to the attachment for the solution.

Do you put the x or y axis first

Answers

X! Hope this answer helped. (Mark me please)

Answer:

x hope this helped you a lot

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