Mathematics Middle School

For which of the following graphs is y a function of x

Answers

Answer 1

Answer:

Step-by-step explanation:

Draw vertical lines on your graph if they pass through more than once it is not a function.

Answer 2

Answer:

Step-by-step explanation:

Use the vertical line test.

If 2 points have the same x coordinate, it is not a function

A fails

B fails

C fails

D passes

Related Questions

Write the expression as a unit rate.

Joyce painted 4 window frames in 10 hours while earning money for college.

What was her painting rate in window frames per hour?

What was her painting rate in hours per window frame?

Answers

Joyce painted 2.5 window frames per every 4 hours

1.6 and 0.625 would be the answer

The exact circumference of a circle is 25π millimeters. What is the approximate area of the circle? Use 3.14 for π. Round to the nearest hundredth if necessary.

Answers

Answer: A = 490.63 mm^2

Step-by-step explanation: Hello! To find the area of a circle, you have to find the radius of the circle from the circumference given. The formula is Circumference/2(3.14) = Radius. To find the circumference, multiply 25 x pi, or 25 x 3.14. 25 x 3.14 is 78.5. Put 78.5 in the equation for the circumference. 78.5/2(3.14) = Radius

Simplify:
78.5/6.28 = 12.5

The radius is approximately 12.5.

The formula for the area of a circle is 3.14 x r^2 = A

Put 12.5 in for r or radius

3.14 x 12.5^2 = A, 12.5^2 = 156.25

3.14 x 156.25 = A

3.14 x 156.25 = 490.625

Rounded to the nearest hundredth is A = 490.63

Answer: hope this helps ♡

The approximate area of the circle is 49.736 mm²

Step-by-step explanation:

Area of circle = π × r²

To find the radius:

25 ÷ 3.14 = 7.96178343949 (← diameter d = 2r)

7.96178343949 ÷ 2 = 3.98089171974 (radius)

π × r² =

3.14 × 3.98089171974² =

3.14 × 15.8474988843 =

49.7611464967 ≈ 49.736

Riley conducted an experiment in which she placed red, yellow, blue, and orange pieces of paper in a ahat and drew them out without looking. The number of times Riley drew each color is shown in the table above. What is the experimental probability that the next sip of paper Riley draws will be orange or yellow?

Answers

Where’s the picture ????

I found the picture! You have to add all the different colored pieces (55) and divide that by the amount of orange pieces 28 so do 55/28 which is around 1.96 to find the probability of yellows is to divide 55/5=11.. let me know if this helps!

basic understanding series
word 2- surface area
——————
explain surface area simply and give an example of how to find it
-
brainliest question: give a real world example of surface area

Answers

Answer: A basic definition of surface area would be defined as the amount of space that is covering the outside of a 3D shape. A example of real world surface are would be to find out how much frosting you would need to put on the surface of a cake

Which answer tells you how many containers of flowers the customer bought?

I'll be giving a free heart and five star. /^._.^\

Answers

7 as one bag of dirt costs £7 so u take away that from the original price then divide that number by 4.50 which equals 7

Answer: 7

Step-by-step explanation:

$38.50-$7=$31.5

$31.5/$4.50=7

Can you graph the equation y=4x?

Answers

On your graph plot the point at (0,4)

Answer:

make two points or three points on the graph to make sure you're correct

First point: x=2 y=2x4=8 (2,8)

Second point x=0 y=0 (0,0)

Third point: x= -2 y= -2x4= -8 (-2,-8)

Your sister’s soccer team drinks 15 liters of water during their tournament. Water coolers are sold in gallon sizes. What is the smallest gallon water cooler they will need to buy? (1 gallon 3.8 liters)

Answers

Answer: 4 gallons

Step-by-step explanation:

I am pretty sure it is 4 gallons because if you multiply 3.8(2)=7.6 and then 3.8(3)=11.4 and finally 3.8(4)=15.2

So that is why I think that the smallest gallon water cooler they will need too by is a 4-gallon cooler.

lawd lawd lawd lawd lawd lawd lawd lawd let me think.

A line passes through the point (6,-9) and has a slope of -2.
Write an equation in slope-intercept form for this line.

Answers

Step-by-step explanation:

y-y1=m(x-x1)

y-9=-2x-12

y= -2x-3

I need help with this!

Answers

The answer is A as the lines AB and OC are the same and they do not interact

The answer to the question is A

9.647 x 10^7 in standard form

Answers

Answer:

Step-by-step explanation:

9.647 × 107 9.647 × 10 7 Since the exponent is positive move the decimal point 7 7 places to the right. 96470000 96470000

I think if im not going crazy we did this one in school.

Answer:

96470000x

Step-by-step explanation:

Please help, it's with 100 points
Moving at a constant rate, a trenching machine is advertised as being able to dig 36-foot trenches in 40 minutes. A farmer uses the same machine to dig trenches that are 58.5 feet long, with each trench taking 65 minutes to complete.
Answer the question in a paragraph by using the situation above:
1. Is the coefficient of the x-variable k or m? How do you know?
2. Is the constant b equal to 0? How do you know?

Answers

the coefficient is like x and like b because my math teacher said like ya do ya

Answer:

its MIGHT be x and b i think so? hope this helps :>

Step-by-step explanation:

Is the function shown linear or nonlinear?
Explain your answer. I NEED HELP ASAP!!!! and anwser it right because its for an assignment

Answers

Answer:

nonlinear

Step-by-step explanation:

since the line isnt straight

Answer:Nonlinear

Step-by-step explanation: Since the line is not straight.

Please see photo attached. I don't understand

Answers

Attache the question

I think i can help! First, the rental fee is basically what you have to pay to get access to the item. It means that no matter how many hours you rent the item for, THE RENTAL FEE ALWAYS STAYS THE SAME. Next, The cost per hour is what you have to pay for every item you use the item. To figure out the cost per hour, all you need to do is multiply the cost per hour by the number of hours you are using the item. Lastly, the total cost if you are only using the item for one hour is the sum of the cost per hour and the rental fee. If you are using an item for more than an hour, like i said before, the rental fee always stays the same and you need to multiply the cost per hour by the number of hours you used the item. that’s all i can say my brains hurts now lol

Combing Like Terms 67 pnts

Answers

Answer:

keep trying, practice makes perfect. or search it up, i answered the wrong question at first so im changing it.

Step-by-step explanation:

Answer: 3rd one

the 4th one doesn’t have anything to multiply it with

∩·ω·∩
In the first week of July, a record 1,020 people went to the local swimming pool. In the second week, 105 fewer people went to the pool than in the first week. In the third week, 130 more people went to the pool than in the second week. In the fourth week, 280 fewer people went to the pool than in the third week. What is the percent decrease in the number of people who went to the pool over these four weeks?

Answers

Answer:

20% !

Step-by-step explanation:

20% I believe hope this helps

Please help me with this math homework and show how you got the answer!

Answers

Answer:

Step-by-step explanation:

multiply 1×2×1×2×3×5

Answer:

Step-by-step explanation:

Yellow block closest side and farthest side: 2x1=2 2x2=4

Yellow block right and left side: 1x1=1 1x2=2

Yellow block bottom: 2x1=2

Yellow block top: 2x1=2

Purple block closest side and farthest side: 5x2=10 10x2=20

Purple block right and left side: 2x3=6 6x2=12

Purple block bottom: 5x3=15

Purple block top: 5x3=15 15-2=13

2+2+2+1+1+13+10+10+6+6+15= 68

The overlap effects the calculation of the surface area because the bottom of the yellow block and a part of the purple block overlaps making it so that you would count it two times instead of the area that is visible.

I like to think of it as spray painting the blocks and seeing where the paint sprays.

Pls Help me out here
i will mark brainliest and you'll get 50 points
and any ridiculous or 'nvjnfsjn' answers will be reported so keep that in mind before you answer. Thank you :)

Answers

Answer is 74;(7(867966

The answer to the question is 74

Helppp me pleaseee show work too or don't

Answers

Answer:

x^2 + y^2 + z^2

Step-by-step explanation:

Pythagorean theorem: a2 + b2 = c2. Sines: sin A = a/c, sin B = b/c.

Cosines: cos A = b/c, cos B = a/c.

The price for gasoline is represented by the equation y = 2.72x, where y represents the total price for x gallons of gasoline. What is the unit rate?

A 2.72

B y

C x

D 5.44

Answers

AAAAAaaaaaaaaaaaaaaaa

A. 2.72

If we follow the y = mx + b formula it means that b is the y intercept and m is the rate so in this case our m is 2.72

Please answer
Which of the following is not mentioned in a signal phrase?

The date of publication
The name of the author
The name of the website
The title of the article

Answers

Answer:

A date of publication I believe

Answer:

A: Date of publication

Step-by-step explanation:

I took the exam

This year, Brad is a photographer for his school newspaper. He takes 5 color photos for every 2 black-and-white photos.
Complete the table.
Color photos 5 15
30
Black-and-white photos 2
8

Answers

Color 5 - 2 Black-and-White

Color 10 - 4 Black-and-White

Color 15 - 6 Black-and-White

Color 20 - 8 Black-and-White

Color 25 - 10 Black-and-White

Color 30 - 12 Black-and-White

Answer:

Colored photo I Black photo

5 2

10 4

15 6

20 8

25 10

30 12

35 14

40 16

45 18

50 20

Helppp fasttttt pleaseeeeeeeeeeee

Answers

The scale factor is 2 because ZY is 2 units in length where as Z’Y’ is 1 unit in length.

Can you solve this for me? Thank you! :>

Answers

add 62 to both sides :D

Add 62 to both sides
Hope this helps good luck

The Top-Notch Middle School had athletes from all the grades playing on a sports team.

6th grade 7th grade 8th grade
Basketball 2 4 7
Baseball 1 6 5
Soccer 7 4 4
Football 8 15 10

Explain what the ratio 15:73 represents.
The ratio 15:73 represents the ratio of total athletes to 7th grade football players.
The ratio 15:73 represents the ratio of 8th grade baseball players to total athletes.
The ratio 15:73 represents the ratio of 7th grade football players to total athletes.
The ratio 15:73 represents the ratio of 6th grade athletes to total athletes.

Answers

Answer:

The ratio 15:73 represents the ratio of 7th-grade football players to total players.

Step-by-step explanation:

If you add all the players together, you get 73. The number of 7th-grade football players is 15.

This is really simple! If you add the students all together you get 73! While 15 is the amount of 7 graders playing football. So 15:73

Answers

Answer:

yellow because orange has more color and if you subtract the answer will be their

Answer:

60%

Step-by-step explanation:

28(o)+5(y)=33

10+5+12+28=55

(ORANGE + YELLOW)/ TOTAL=33/55

33/55=.6

.6=60%

A gardener spread 2/3 of a bag of mulch evenly over his 6 equal-sized vegetable beds. How much mulch did he put on each vegetable bed?

Write your answer as a fraction or as a whole or mixed number.

Answers

Answer: 1/9

Step-by-step explanation: We can start the problem by using the concept of unit rate.

We know that the gardener spread 2/3 of a bag of mulch over his 6 vegetable beds. To find the amount of mulch per bed, we can divide the total amount of mulch by the number of beds.

So, the unit rate of mulch per bed is (2/3) / 6 = 1/9 of a bag of mulch.

So, the gardener put 1/9 of a bag of mulch on each vegetable bed.

Answer: 1/9

Step-by-step explanation:

If it was one bag, it would have been 1÷6 and the answer would have been 1/6 for each vegetable bed.

So if we do the same with 2/3, this is (2/3)/6. Let’s try this:

=[tex]\frac{2}{3}[/tex]÷[tex]\frac{6}{1}[/tex]
=[tex]\frac{2}{3}[/tex]×[tex]\frac{1}{6}[/tex]

=[tex]\frac{2}{19}[/tex]

=[tex]\frac{1}{9}[/tex]

Therefore, the gardener put 1/9th of the bag of mulch on each vegetable bed.

Giving BRAINLIEST to the first one that answers

Answers

Answer:

Below

Step-by-step explanation:

Since they are complementary the two angles sum to 90° ...so:

x+ 16 + 3x+2 = 90

I agree with the answer above

will mark brainliest

Express the following rate as a unit rate . If necessary, round your answer to the nearest tenth.

Example: You would enter an answer like 13.8 feet/second with 13.8 in the first box and the units feet and second in the following boxes.

RATE: 6 inches for 20 days

Answers

Answer:

0.3inches/day

Step-by-step explanation:

First do 6 divided by 20 = 0.3

Answer:0.3

Step-by-step explanation:

You divide the number of inches by the number of days, so 6 inches divided by 20 days = 0.3

first box: 0.3

second box: inches/ days

The monthly snowfall on Sugar Mountain dropped from 25 inches to 20 inches. What is the percent decrease?

Answers

Answer:

it is 25

Step-by-step explanation:

first work out the difference (decrease) between the two numbers you are comparing. Next, divide the decrease by the original number and multiply the answer by 100 then you will get the answer 25 just check any way

Answer:

The answer is a 20% decrease

Meg is a veterinarian. She found that 20% of the 50 dogs she saw this week were boxers. Steve is also a veterinarian. He found that 1 of the 5 dogs he saw this week were boxers. Does each person need to find the part, the whole, or the percent?

Answers

Percent = (part / whole) × 100 =
(7/35)×100 = 20%

Answer:

Meg needs to find the whole

Steve needs to find the percent

brainliest pls

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