Mathematics Middle School

Which relation is a function?

{(8, 1), (4, 1), (0, 1), (–15, 1)}
{(0, 1), (0, 2), (1, 2), (1, 3)}
{(–2, –12), (–2, 0), (–2, 4), (–2, 11)}
{(–4, –6), (–3, –2), (1, –2), (1, 0)}

Answers

Answer 1

Answer:

To check if a relation is a function, given a mapping diagram of the relation, use the following criterion: If each input has only one line connected to it, then the outputs are a function of the inputs. Example: In the following mapping diagram, y is a function of x, but x is not a function of y: Line Test.

Step-by-step explanation:

Related Questions

A scale measures a 1,000 gram weight as 945 grams. What is the percent error?

Answers

Answer:

5.5%

Step-by-step explanation:

The difference, or error, is 55 grams. The absolute value of (1000-945)/1000 is easily 0.055. Convert that into a percent and you'll get 5.5% as your error.

Answer:

5.820

step by step explanation

Simplify please. I'll give brainlist to who answers all

Answers

Answer:

1. 3x + 8a + 8

2. 6y − 2z + 7c + 4

3. 3n + 17b + 14

4. 5m/7 + 2n + 3

Step-by-step explanation:

Pls mark brainliest.

The property of taxes on a home varies directly with the value of the home. Jack currently lives in a home worth $172,000 and pays $13,760 on taxes.

Identify the constant.

Answers

Answer:

the constant is 172,000

Step-by-step explanation:

because the home's worth never changes, but the taxes change based on the year

Answer:

Jack pays 8% property tax

172,000. X .08 = $13,760

So

329,000. X .08 = $26,320

Can someone explain this to me

Answers

Answer:

C.

Step-by-step explanation:

The reason why it is c is because:

1. First pick a point, I choose point A

2. Then it said translation 3 units right. I looked at at all the images that moved to the right by 3 units and the only ones were A and C.

3. Then it said 3 units up. Both of them moved 3 units up, so I looked at both shapes and realized that the shape in A wasn't the same as the original picture. This left me with C as my choice.

Hope this helped!

Find the one that moved 3 right and 3 up

The scale drawing of a field in the shape of a triangle is shown below. What is the actual area in square meters, of this field?
A.) 8.75
B.) 17.5
C.)35
D.)70

Answers

Answer:
70 m^2.
Step-by-step explanation:
Area of the triangle = 1/2 * base * height.
Counting the squares on the coordinate plane:
Base = 7, height = 5
Each square = 2 meters
So the area = 1/2 * 14 * 10
= 70m

The actual area in square meters, of this field should be considered as the 70 m^2.

Calculation of the actual area:

Since we know that

Area of the triangle = 1/2 * base * height.

here,

Base = 7, height = 5

And, Each square = 2 meters

So the area should be

= 1/2 * 14 * 10

= 70m

hence, The actual area in square meters, of this field should be considered as the 70 m^2.

Learn more about an area here: https://brainly.com/question/2031248

Please help me. My homework is due at 11:59

Answers

the grocery store selling a 3 pound bag for $4.20. while the other store would sell it for $4.50.
4.20/3= 1.4 and 3/2= 1.5 so basically 4.20 thingy

Teddy, Karzan and Karl went to the store to buy candy. Teddy spent $21 on 3 pieces of candy, Karzan spent $63 on 21 pieces of candy, and Karl spent $58 on 20 pieces of candy. Who spent the LEAST per piece of candy?

Answers

Karl did because $58 for 20 pieces is cheaper than $63 for 21 and $3 for 21 pieces.
Karl spent the least amount of money

I need help asap. i need to turn it in today​

Answers

Answer:

14) July

15) Snow. Because the temperature is below 0 (freezing point)

Answer

14. July

15. Snow, because it is below 32° (the real freezing temperature)

PLEASE HELP! WILL MARK BRAINLIEST! PLEASE DO THESE ON PAPER AND PUT A PICTURE OF IT ON YOUR ANSWER! THANK YOU!
Systems of Equation Quiz
Solve each system using substitution or elimination.
1.) x=-2 2.) y=4x+6 3.) -40x + 8y=-24
4.) 4y-3x=18 5.) -5x-y=21 6.) 3x - 8y=24

Answers

Well, I'm so sorry. I don't know this answer because I don't know algebra stuff. I'm in 6th-grade middle school. This seems like a high school question.

Answer: Good afternoon scarlett!

Step-by-step explanation:As in it is a good afternoon weather you like it or not.

The ratio of students to teachers at a school is 19:1. At this school, there are 400 people (teachers and students). How many of these 400 people are students?

(enter the number only, without the unit)

Answers

Answer:

380

Step-by-step explanation:

First, figure out that in the ratio of 19 : 1, there are 20 people. 400 divided by 20 = 20. This means you have to multiply the number of students in the original ratio (19) by 20 to get the actual amount of students.

19 × 20 = 380 so there are 380 students.

380 students is correct Answer

PLEASE HELP QUESTION IS A IMAGE

Answers

(2,3). The vertex of a parabola is the highest or lowest point of the graph
(2,3) because the vertex is the highest point. so you just count the spaces. i learned it by x over y because x is straight across so (you crawl) and y is up and down (you walk). you learn how to crawl before you walk. i hope this helps you!!

Help you'll get brainliest if right!!

Answers

Answer:

2/1 for all?

Step-by-step explanation:

it doesnt make sense

What is the cost of a $1200 washing machine that was on sale for 5/12 discount

Answers

The cost would be about $560 when rounded to the nearest tent. Sorry if I’m no help

Answer:

$960

Step-by-step explanation:

1200x1/5= 240

1200-240= $960 :)

i thinkk

Dr. Fauci had .035 liters of Flu medicine. Each person will get the same amount of vaccine. One dose contains .005 liters. How many patients will get the medicine from Dr. Fauci?

Answers

Answer:

70 patients will get the medicine.

Step-by-step explanation:

I will give brainliest and 69 points to whoever answers or helps me with these 5 questions.

Answers

Answer:

It's

Step-by-step explanation:

What is the answer for 4y-46+y=4-5y+10 ?

Answers

Answer:

y = 6

Step-by-step explanation:

4y - 46 + y = 4 - 5y + 10

simplify

5y - 46 = 14 - 5y

add 5 y to each side

10y - 46 = 14

add 46 to each side

10y = 60

divide both sides by 10

y = 6

Car leases generally allow only a certain number of miles to be driven. Myung’s lease included a charge of 25 cents per mile for all miles above 12,000 per year. If Myung had a 3-year lease and was charged $1,640 at the end of the lease, how many miles had she driven during the 3 years?

Answers

Answer:

197

Step-by-step explanation:

Divide 1640 by 25

1640/25=65

Then multiply 65 and 3

65x3=197

6560 if you divide 25 into that you get the answer

Define the variables and write the equation that represents the relationship between the price of a car and the commission received

Answers

Answer:

Step-by-step explanation:

A realtor makes 5% commission on each sale.

Define the variables and write an equation to represent the relationship between the price of a home and the commission received.

p = price

c = commission

c = 0.05 p

hope this helped

You throw a number cube three times. What is
the probability that you roll an odd number all
three times? Write your answer as a decimal

A. 0.125
B. 0.5
C. 0.166
D. 0.25

Answers

0.25 sorry if i’m wrong, tell me if i am

Answer:

A. 0.125

Step-by-step explanation:

So since there is 6 numbers on a standered cube with 3 of those being odd numbers you have the fraction 3/6 but since you roll the cube three times you have 3/6 × 3/6 × 3/6. 3×3×3 is 27 and 6×6×6 is 216 you end up with 27/216. Lastly to make it a fraction you put 27 ÷ 216 in a calculator and get 0.125

Hopefully this helped! And im sorry im not the best at explanations.

I NEED HELP ON THIS PLS...

Answers

Answer:

x = 17

Step-by-step explanation:

4x + 5 +107 = 180

4x + 112 = 180

      -112   -112

4x = 68

/4     /4

x = 17

We can check this work by inserting x:

4(17) + 5

73 + 107 = 180!

Your answer is 17 your welcome

Felix chooses a game piece from a bag. This table gives the number of game pieces of each color in the bag.

{Color} & Number of pieces

{Blue 2}

{Green 2}

{Red 3}

{Yellow 5}


What is the probability that Felix will choose a blue or a green piece?


PLEASE HELP ME <3 :p

Answers

Answer: 1/3
Explanation: don’t know how to explain

Pls help it is due today

Answers

Answer:

544

Step-by-step explanation:

(2)16 x 6 = 96 x 2 = 192

(2)16 x 8 = 128 x 2 =256

(2) 6 x 8 = 48 x 2 = 96

192 + 96 + 256 = 544

Hope this helped!!

544


HEYY

HEYY




NICKI MINAJ IS THE QUEEN OF RA-

Design a simulation that you can use to model the situation. Then use your simulation to find the experimental probability.
The probability that a meal at a restaurant is overcooked is 10%. Estimate the probability that exactly 1 of the next 2 meals is overcooked
What is the experimental probability?______

Answers

Answer:

Did you find the answer to this yet??

Step-by-step explanation:

I need help with the question.

Answer:0.18

Step-by-step explanation:

PLEASE HELP ME!!!!!!!

Answers

Honestly I don’t know it sorry

Part A
What is the area of the picture in square inches?
OA. 41 square inches
OB. 8Tt square inches
OC. 161 square inches
OD. 321 square inches

Answers

I think it’s a but I’m not entirely sure
A not so sure but I feel like is the one that makes most sense hope it helps!

help plssssssssssssssssssssss

Answers

Answer: Goodluck! I hope this was helpful!

Answer:

c>−1.95

Step-by-step explanation:

Step 1: Simplify both sides of the inequality.

20>−3.2c+13.76

Step 2: Flip the equation.

−3.2c+13.76<20

Step 3: Subtract 13.76 from both sides.

−3.2c+13.76−13.76<20−13.76

−3.2c<6.24

Step 4: Divide both sides by -3.2.

−3.2c−3.2<6.24−3.2

c>−1.95

Factor X^2+14n+45. Find the GCF first

Answers

Answer:

There is no GCF

Step-by-step explanation:

No solution for this problem

The length of a rectangle is 200 m. The diagonal measures 250 m. Use this information to find the values of the perimeter and area of the rectangle.

Answers

Answer:

Step-by-step explanation:

width=[tex]\sqrt{250^{2} -200^{2} }[/tex]

        =150 m

perimeter=(150+200)2

                =700 m

area=150(200)

       =30000 m²

Answer:

30000m i think

Step-by-step explanation:

Please help. I'm not that smart...

Answers

Answer:

7.25, 8.5, 9.75, 11

Step-by-step explanation: To find the answer you need to replace the X with the number in the chart. For example, to find the answer to the second box you need to insert the 2 for X.

y= 1.25x+6

y=1 .25(2)+6

y= 2.5+6

y= 8.5

Let me know if it's right, or if you need more help, good luck!

Find the mean for each set of data. Ages of students' dog: 5,6,3,4,8,10,6

Answers

Answer:

 

Step-by-step explanation:

16.75

Other Questions
What is medscape mobile I just need the numbers and rule. I cant fail this thank u sm if u help me :) What is the minimum recommended safe distance from an X-ray source? Why is Annabeth upset with Percy for risking his life on the bus?The Lightning Thief chapter 11 Radioactive strontium (Sr) is harmful to humans. Strontium, when ingested by cows, can be introduced to milk through the process of replacing an element of the same group or family that has similar properties. Using the Periodic Table, which element do you think can be easily replaced by strontium in milk?A: BB: AgC: CaD: K which item is an example of a secondary source? Calculate the percent of each component in the mixture. Show your calculations. Circle final answers. What was the first president a hot air balloon goes 350 feet into the air and drifts east 600 feet how far id the balloon from the launch point What is the product of (3x + 1)(2x + 4)? GIG A basketball player jumps straight up to dunk a basketball. The basketball player's speed increases as she returns to theground. What is true about the forces acting on the basketball player? A. The upward force is greater than the downward force.B. The downward force is greater than the upward force C. The rightward force is greater than the leftward force.D. The leftward force is greater than the rightward force. A time ticket: Multiple Choice Shows the time that a department's employees worked on all jobs, the pay rate of each employee, and the total cost chargeable to each job. Shows the time an employee worked on each job, the pay rate, and the total cost chargeable to each job. Shows the time an employee worked on each job only. Shows the time an employee worked on each job and the total cost chargeable to each job only. The temperature of stars in the universe varies with the type of star and the age of the star among other things. By looking at the shape of the spectrum of light emitted by a star, we can tell something about its average surface temperature.i)If we observe a star's spectrum and find that the peak power occurs at the border between red and infrared light, what is the approximate surface temperature of the star Lewis is rolling a 10-sided die 250 times. Each side of the die is labeled with a number 1 10. Based on the theoretical probability, how many times would Lewis be expected to roll a multiple of 3? Please help answer these math question will give brainless.. :) Find the area, to the nearest hundredth, of the figure there are 8 circles and 6 squares. what is the simplest ratio of squares to circles? Describe how the colors you see would change if you were to dive from the surface to down deep in theocean. What would things look like 2m below the surface compared to 170m below the surface? The denominator of a basketball is approximately 9 inches. what is the volume? if y/z=4/7, then z/y=