HELP PLEASE Which of these mappings is a function?

HELP PLEASE Which Of These Mappings Is A Function?

Answers

Answer 1

Answer:

B; x is the one that's a function because for every input there is one output. for all the other ones a x-value has two y-values and that's not function.

Step-by-step explanation:


Related Questions

I’m a little confused can someone help??

Answers

Answer:

C!

Step-by-step explanation:

83+30=113

ill give you brainliest for the correct answer

Answers

Answer:

An equation is 2.50x + 30 = 45

You purchased 6 movies

when is it best to use the graphing method to solve a system of equations????

Answers

Answer:

graphing by hand it probably can help or you could do it your way if u want



Use a scale factor to find the missing side.

A)10
B)12
C)15
D)16

ᴄᴀɴ sᴏᴍᴇᴏɴᴇ ᴘʟᴇᴀsᴇ ʜᴇʟᴘ ᴍᴇ.

Answers

Answer:

15

Step-by-step explanation:

If we accept that the left side of the left triangle corresponds to the left side of the right triangle, then the scale factor is 6/8 = 3/4. By multiplying the scale factor by the bottom side of the first triangle, you'll get the corresponding side of the right triangle: 20 * 3/4 = 15.

Answer:

15

Step-by-step explanation:

I need Help please #22

Answers

Answer:

A: 7.5

Step-by-step explanation:

If the length is 5 inches longer than the width, we must multiply the width by 4 and add ten to figure out the perimeter. 7.5 x 4 = 30. 30 + 10 = 40.

Answer:

8

Step-by-step explanation:

40/5=8 plz trust me i need it!!!

I need a quick answer plss

Answers

Answer:

girl u didnt add the question...

Step-by-step explanation:

Which of the following is NOT a rational number?
-4/7
3/5
(the symbol for pie)
2/3

Answers

Answer: (the symbol of pi)

Step-by-step explanation: Because if you divide each of those fractions only pi keeps in going without repeating itself.

(–3i) (4i)(–5i)
a
60i3
b
60i
c
60
d
−60i

Answers

Answer: -60i

Step-by-step explanation:

(-3i) (4i) = -12i^2 = 12 because i^2 = -1

then lastly

12 (-5i) = -60i

SOLVE THIS PROOF PLEASE

Answers

Answer:

wait what are you trying to find i-

Step-by-step explanation:

need help on worksheet

Answers

Answer:

-2, -1, 0, 1, 2

Step-by-step explanation:

the answer will be 0,-2,2,-1,1

80 L is what percent of 400 L tank

Answers

Answer:

50%

Step-by-step explanation:

BRAINLIEST PLEASE

Answer:

the percentage of 80L from 400L is 20%

Step-by-step explanation:

in order to find the percentage of something you need to divide the total amount from the number you want to find the percentage of:

80 / 400 = 0.2

we now multiply 0.2 by 100 to turn it into a percentage:

0.2 * 100 = 20%

please help me like i really don't understand this and i really need help​

Answers

Answer:

Therefore, the coordinates of the vertices of ΔA'B'C' after the dilation with a scale factor of 2.5.

A'(-5, -2.5)B'(2.5, 5)C'(5, -10)

Step-by-step explanation:

Given the vertices of ΔABC

A(-2, -1)B(1, 2)C(2, -4)

Given that ΔA'B'C' is a dilation of ΔABC with a scale factor of 2.5 and the center of dilation (0, 0).

We know that when the scale factor > 1, then the image is enlarged.

The formula to determine the dilation with a scale factor of 2.5.

P(x, y) → P'(2.5x, 2.5y)

Here, P' is the image of P, and the vertices of the image is dilated by a scale factor of 2.5.

In other words, the vertices of the image can be obtained by multiplying the vertices of the original triangle with 2.5.

Thus,

P(x, y) → P'(2.5x, 2.5y)

A(-2, -1) → P'(2.5(-2), 2.5(-1)) = A'(-5, -2.5)

B(1, 2) → B'(2.5(1), 2.5(2)) = B'(2.5, 5)

C(2, -4) → C'(2.5(2), 2.5(-4)) = C'(5, -10)

Therefore, the coordinates of the vertices of ΔA'B'C' after the dilation with a scale factor of 2.5.

A'(-5, -2.5)B'(2.5, 5)C'(5, -10)

divide 5 divided by 1/4 ​

Answers

Answer:

20

Step-by-step explanation:

Answer: 5 is made up of 5 times 1 of 5 ×4 = 20. A more mathematical way is to actually do this as a division problem of two fractions. 5 = 5 1. so divide 5 1 by 1 4. 5 1 1 4. This is a complex fraction make it simpler by multiplying both sides by the inverse of 1/4 which is 4/1.

Step-by-step explanation: Hope This Helps!!

From: Kageyama! <3 No need to thank me, it's what I do! ^^

isac walks 6/10 of a mile in 1/5 of an hour if his rate remains constant what is isac walking rate in miles per hour

Answers

Answer:amazing

Step-by-step explanation:

A bag contains 1 blue, 2 green, 3 yellow, and 3 red marbles, as shown.Which best describes the complement of choosing a red marble?

choosing a green or blue marble
choosing any marble
choosing a blue, green, or yellow marble
choosing a yellow marble

Answers

Answer:

C) choosing a blue, green or yellow marble.

Step-by-step explanation:

The Complement of choosing a red marble means choosing any other marble that isn't red.

From the question , it was said that there were a blue , green, yellow and red marble.

So the Complement of choosing a red marble will be choosing any other marble apart from the red so ,that will be choosing a blue yellow or green marble.

Answer:

c

Step-by-step explanation:

can you help me answer this question

Answers

Answer:

it would be 18 over 5

It’s 18 over 5 ok bye

Will give brainliest!

Answers

Answer:

Answer is C multiply 5 by every ticket

Step-by-step explanation:

Kendra knits hats. She starts with 334 yd of yarn. After knitting for 514 h, there is 118 yd of yarn left. At what rate does the amount of yarn change? Show your work.

Answers

Answer:

Step-by-step explanation:

Total yarn = 334 yards

Amount remaining = 118 yards

Amount knitted = 512

amount per hat =x

amount used = y

amount used = 334 - 118 = 514*x

y= 216= 514x

216 = 514 x         Divide by 514

216/514 = x

.42 yards/hat = x

What is the distance from L to M?

Answers

Answer:

B or A

But i would go with B

Step-by-step explanation:

Answer:

A. 14 units

Step-by-step explanation:

You can just count blocks down and right. (vertical and horizontal)

Can you please help? I’m tired and I have to work on this

Answers

1. 1/3 2. 1/2 3. 4:1 4. 3:4

Answer:

1) 1/3

2) 1/2

3) 4/1

4) 3/4

5) 2/5, 4/10, 4:10, 4 to 10

6) 3:4, 6/12, 6:12, 6 to 12

7) 3 to 1, 9/3, 9:3, 9 to 3

8) 7/9, 14/18, 14:18, 14 to 18

9)

a) 3/2

b) 3/5

c) 27:18

10) 96 birds visited the feeder

11)

a) nuts row: 3, 6, 9, 12

   raisins row: 4, 8, 12, 16

b) 7.5 cups

12)

a) This ratio means that for every 9 boys in the school there are 10 girls

b) 570 students

After a 5% discount, a car is on sale for $11,400. What was the price of the car before the discount?

Answers

Answer:

10,830

Step-by-step explanation:

PLEASE PLEASE HELP I NEED THE ANSWER SOON

Answers

9514 1404 393

Answer:

  A, C

Step-by-step explanation:

The domain is the list of x-values in the table. Choice A correctly lists the domain values.

The range is the list of y-values in the table. Choice B incorrectly describes the domain.

For x = -1, the table tells you f(x) = 6, so f(-1) = 6.

For x = 5, the table tells you f(x) = 12, so f(5) = 12, not -2.

Choices A and C are correct.

f(x) =∛2x g(x)=2x+1 Find (f/g) (x) Include any restrictions on the domain

Answers

Answer: ∛2x / 2x+1

x cannot equal -1/2

Step-by-step explanation: f/g means we divide the f function by the g function

so that’s all we do!

then, remember, we can’t divide by 0. so 2x+1 can’t be 0. if we solve that out, we get that x can’t be -1/2, because that would make it 0. there’s our domain restriction!

Emmy goes through a 50-ounce jug of laundry detergent in 40 loads. At the store, she
bought a jumbo jug of detergent. The jumbo jug contains 150 ounces of detergent.
How many loads of laundry can Emmy do with the jumbo jug of laundry detergent?

Answers

Observing 150 is 3 times 50
So to keep it equivalent
40 times 3 is 120

Hence 120 loads of laundry is required with jumbo jug of laundry detergent.

What is laundry detergent?

A sort of detergent (cleaning agent) used to clean soiled laundry is laundry detergent (clothes). There are two types of laundry detergent produced: powder (washing powder) and liquid. Builders (about 50% by weight), surfactants (15%), bleach (7%), enzymes (2%), soil deposition inhibitors, foam regulators, corrosion inhibitors, optical brighteners, color transfer inhibitors, perfumes, dyes, fillers, and formulation aids may all be present in laundry detergents.

∵ Number of jumbo jug = 150 /50

                                     n = 3

∴ Laundry loads required of detergent:

 = 40 * n

= 40 * 3

= 120 loads

To know more about laundry detergent please visit:

https://brainly.com/question/16997259

#SPJ2

Geometry...Please help as soon as possible please and Thank you!!!

Answers

Answer:

I answered the question according to "ASA" Angle, side, angle

.....

Step-by-step explanation:

Note : I'm not a teacher but I'm quite sure about my answer...

Anyway...

If I'm wrong just tell me...

.....

GOOD LUCK... ❤️

Frieda paid $132 for groceries for her family. This was 1 1/8 as much as she paid for the previous time she shopped. How much did Freda pay on her previous shopping trip

Answers

Answer:

$117.33

Step-by-step explanation:

1 1/8 = 1 + 1/8 = 8/8 + 1/8 = 9/8

She paid 9/8 what she paid the last time.

Let the amount she paid last time equal x.

$132 is 9/8 of x.

9/8 x = 132

8/9 * 9/8 x = 132 * 8/9

x = 117.33

She paid $117.33

PLEASE HELP WILL NAME BRAINLEST
determine which lines, if any, must be parallel. Explain your reasoning

Answers

Answer:

All of them are parallel

Step-by-step explanation:

This is due to the all of the 90 degree angle which would make the rest of the line a would be another 90 degree angle Which are found on every line. This would make all of the lines parallel because it is a total of 180 degrees.

elias is training for a marathon. The table shows the total number of miles he has run each 0 I
1 I 9 sorry i could not make a line so i use this > I for a line Please what is the rate.
2 I
3 I 21
4 I
5 I 33

Answers

Answer:

rate of 6

Step-by-step explanation:

Lizzy has 6.5 hours to tutor 4 students and spend 1.5 hours in a lab. She plans to
tutor each student the same amount of time. The inequality 4t +1.5 < 6.5 can be
used to find t, the greatest amount of time in hours Lizzy could spend with each
student. a. Solve the inequality and interpret what your solution means. b. Can
Lizzy tutor each student for 1.5 hours? Explain. *

Answers

Answer:

A. t= 4.1

B. No because t = 4.1 and if you do 6.5 divided by 1.5 then you get 4.3 and that won't work.

Step-by-step explanation:

What number is 150% more than 2/3

Answers

Answer:

4.5

Step-by-step explanation:

Answer:

0.4 repeating

Step-by-step explanation:

Divide 2/3 by 150%

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