Mathematics Middle School

which set of ordered pairs does not represent a function?
a-(0,1),(2,2),(4,8),(-2,7),(5,8)
b-(0,1),(2,2),(4,8),(2,7),(5,8),(7,9)
c-(-3,6),(2,7),(0,5),(1,5),(4,9),(5,4)
d-(-4,2),(-3,2),(-2,2),(-1,2),(0,2),(1,2)

Answers

Answer 1

Answer:

D

Step-by-step explanation:

Answer 2

Answer:

the answer is B.

Step-by-step explanation:

A relation where each input x gives back exactly one output y no x vaules repeat.

 

Related Questions

a car drove 92 km/h for 4 hours. How far did it travel?

Answers

Answer:

368 km

Explanation:

92 * 4 = 368

Answer:

368 km/h.

Step-by-step explanation:

Hey! Let's solve this problem.

First step: So, you are driving 92km/h for 4 hours, right? Key words are: km, hours, 4 and 92.

So, how would we find this out? All we need to do is multiply 4 x 92, and we get 368! But, make sure when you put your answer put the km/h, as if you don't you could possibly get it wrong.

Which of the following expressions can be written as 12(a + b)?

a.(12 + a) ∙ (12 + b)
b.12a + 12b
c.(12 + a) + (12 + b)
d.12a ∙ 12b

Answers

Answer:C(12+a)+(12+b)

Step-by-step explanation:

Answer: 12a + 12b

Step-by-step explanation: Use the distributive property. The property is that you can take the 12 and multiply it by both letters inside separately.

12(a+b) = (12 * a)+(12 * b) = 12a+12b

It's easier to see a picture of how the distributive property works.

I kinda need this quick lol

−2x + 5 −1

b) x −6

d) x < −6

Answers

The answer wouldn’t be eathier of those it would be -2x+4 because 5-1 is 4 and that gives you -2x+4 and you can’t combine like terms
-2x+ 5 -1
-2x -5 -5
x-6 that’s should be the answer

2 X 6 ÷ 2 + 1 answer is supposed to be 4 but I don't know how to get to it​

Answers

Answer:

4

Step-by-step explanation:

2 + 1 = 3Plug 3 in: 2 × 6 ÷ 36 ÷ 3 = 2Plug 2 in: 2 × 2 = 4

*This is not supposed to be the way to solve it. You should never start with addition, but for this expression, they want you to.*

I hope this helps!

279 sit-ups in 9 days. what is the unit rate?
A.13 sit-ups/day
B.27 sit-ups/day
C.31 sit-ups/day

Answers

C. 31 sit-ups/day -

The way you would get this answer is by dividing 279 by 9; 279/9 = 31.

Hope this helps!

Answer: C 31 sit-ups/day

Step-by-step explanation: This is because if you divide 279/9 it would give you how many situps you did in total of those 9 days each.

What is the answer to 2 1/4 / 3/4

Answers

Answer: 3

Step-by-step explanation:

9/4 cause it’s division

Simplify the expression.
4x+9y+3(x+y)

Answers

Answer:

7x + 12y

Step-by-step explanation:

4x + 9y + 3(x + y)

~Distribute

4x + 9y + 3x + 3y

~Combine like terms

7x + 12y

Best of Luck!

Answer:

The simplified expression is 7x + 12y.

Step-by-step explanation:

Please answer this quick

Answers

Answer:

D

Step-by-step explanation:

to find volume its length × width × height. So 12×7×15 is 1,260

Sarah and her 4 friends share some cookies. If each person gets 3 cookies, how many cookies were shared?

Write a mathematical equation that represents this situation.

a. c/5 = 3

b. 5c =3

c. c/4 = 3

d. 4c = 3

Answers

Answer:

Step-by-step explanation:   it is d that is the right

Answer:

A. C/5=3

Step-by-step explanation:

There C number of cookies among 5 people therefore

You choose A (if you are wonder the amount of cookies is 15)

does the graph show a proportional relationship if so use the graph to find the constant of proportionality

Answers

Answer:

it is proportional. the constant rate should most likely be 33.3

Step-by-step explanation:

One Month Yareli made 3 withdrawals for $20 and 1 withdrawal for $80 from her account. How did the withdrawals change the amount in her account?

Answers

Answer:

$140

Step-by-step explanation:

3*20=60

80+60=140

Answer:

The withdrawals would be subtracted away from the account

Step-by-step explanation:

I will use x, as the unknown value for the amount of money left in Yareli's account.

Yareli made a total of 4 withdrawals, all adding up to the sum of $140 withdrawn from the account. So, in the equation, it would kind of look like this:

x - $140.

Please help with this assignment!! It’s math, also zooming into the photo makes it look much clearer.

Answers

C thank me later.Welcome

X-number of days Y- cost
6 2
9 3
24 8
3 1
a) Is this a proportional relationship?

b) If this is a proportional relationship, what is the constant? Write N/A if it is not proportional.

c) If this is a proportional relationship, write a direct proportion equation. Write N/A if it isnot proportional.

Answers

yesssssssssssassssssss

a) Yes, This is a proportional relationship.

b) The value of constant is, 1/3.

c) The direct proportion equation is,

⇒ y = 1/3x

Where, y represent the cost and x represent the number of days.

What is Proportional?

Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.

We have to given that;

The relation is,

X-number of days      Y- cost

6                                    2

9                                    3

24                                  8

3                                    1

Let number of days = x

And, Cost = y

So, By definition of proportional, we have;

⇒ y = kx

Where, k is constant of proportionality.

Now, By the given relation, we get;

⇒ 2 = k × 6

⇒ k = 2/6

⇒ k = 1/3

And, y = kx

⇒ 3 = k × 9

⇒ k = 3/9

⇒ k = 1/3

Hence, The given relation is in proportion.

And, The value of constant of proportionality = 1/3

Thus, The direct proportion equation is,

⇒ y = 1/3x

Where, y represent the cost and x represent the number of days.

Learn more about the proportion visit:

https://brainly.com/question/1496357

#SPJ2

which series of transformations will move the triangle in Quandrant 1 onto the similar triangle in Quandrant 3
A. reflection across th x-axis and translation 6 units up
B. translation 6 units down and reflection across the y-axis
C. rotation of 90 degrees clockwise and reflection across the y-axis
D. translation 6 units down and rotation of 9p degrees counterclockwise

Answers

It would be c I hope that helps
I think it’s C sorry if I’m wrong

Which fraction is equivalent to2/6

3/7
3/9
3/12
3/8

Answers

Answer:

3/9

Step-by-step explanation:

2/6=1/3

3/9=1/3

3/9
I’m pretty sure that’s it. sorry if I’m wrong.

Add.
1.234 + 123.4 =

Answers

1.234 + 123.4 = 124.634

One-third of a number yields twelve. Which equation could be used to find the number?

A 3n = 12
B n = 12
C n = -12
D 3n = -12

Answers

I think it is B
because it makes sense

a rental car agency charges $240 per week plus $0.25 per mile how many miles can you travel in one week for 475$ help

Answers

Answer:

940 miles

Step-by-step explanation:

You first want to Subtract 475 and 240 which equals 235. Then divide that by 0.25 and you get 940 miles.

Find the constant of proportionality and write an equation with this table

Answers

Answer:

the constant is 3

Step-by-step explanation:

2/1 divided by 2/3 = 2/1 times 3/2 when you do that you get 6/2 then simplify and you get 3

The answer should be 3 or the constant

6x3(4/2)+1
extra characters

Answers

Answer:37

Step-by-step explanation:

37 is the answer for this question

−34(x−3)−5=18(x−1)
x =?

Answers

Answer:

x=2.211538462

Step-by-step explanation:

-34x+102-5=18x-18

sub 5 from 102

-34x+97=18x-18

add 18 to both sides

-34x+115=18x

add 34x to both sides

115=52x

divide 52 from both sides

2.211538462=x

using a ruler how could you calculate the floor area of your classroom

Answers

Answer:

Measure the length of the room and then measure the width of the room. Then we multiply the two numbers to find the area.

I have no idea how to do this! need help, please

Answers

Distribute your numbers on the out side of your Parentheses to the numbers on the inside
Distribute your numbers (sorry if this isn’t helpful, I’m really struggling with homework and it says it need to answer another question, I’ve been working for over 12 hours, I’m tired)

64 is 4 times the difference between 10 and a number

Answers

Answer: -6

Step-by-step explanation: 64=4(10-n)

Basically 10-x and then then the answer to that times 4=64

What is a simplified form of the expression 4(2a – 1) – 5a?
a+4
3a-4
-9a+4
13a-4

Answers

Answer:

3a-4.

Step-by-step explanation:

4(2a-1) --> 8a-4

8a-4-5a

8a-5a=3a

3a-4

Answer: a≓6.969819675
Explanation: Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

a+3/a+7-2*a-4/a^2+3*a-28-(2-a/4-a)=0

Step by step solution :

STEP
1
:

a
Simplify —
4
Equation at the end of step
1
:

3 4 a
((((((a+—)+7)-2a)-————)+3a)-28)-((2-—)-a) = 0
a (a2) 4
STEP
2
:
Rewriting the whole as an Equivalent Fraction

2.1 Subtracting a fraction from a whole

Rewrite the whole as a fraction using 4 as the denominator :

2 2 • 4
2 = — = —————
1 4
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

2.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

2 • 4 - (a) 8 - a
——————————— = —————
4 4
Equation at the end of step
2
:

3 4 (8-a)
((((((a+—)+7)-2a)-————)+3a)-28)-(—————-a) = 0
a (a2) 4
STEP
3
:
Rewriting the whole as an Equivalent Fraction

3.1 Subtracting a whole from a fraction

Rewrite the whole as a fraction using 4 as the denominator :

a a • 4
a = — = —————
1 4
Adding fractions that have a common denominator :

3.2 Adding up the two equivalent fractions

(8-a) - (a • 4) 8 - 5a
——————————————— = ——————
4 4
Equation at the end of step
3
:

3 4 (8-5a)
((((((a+—)+7)-2a)-————)+3a)-28)-—————— = 0
a (a2) 4
STEP
4
:

4
Simplify ——
a2
Equation at the end of step
4
:

3 4 (8-5a)
((((((a+—)+7)-2a)-——)+3a)-28)-—————— = 0
a a2 4
STEP
5
:

3
Simplify —
a
Equation at the end of step
5
:

3 4 (8-5a)
((((((a+—)+7)-2a)-——)+3a)-28)-—————— = 0
a a2 4
STEP
6
:
Rewriting the whole as an Equivalent Fraction

6.1 Adding a fraction to a whole

Rewrite the whole as a fraction using a as the denominator :

a a • a
a = — = —————
1 a
Adding fractions that have a common denominator :

6.2 Adding up the two equivalent fractions

a • a + 3 a2 + 3
————————— = ——————
a a
Equation at the end of step
6
:

(a2+3) 4 (8-5a)
(((((——————+7)-2a)-——)+3a)-28)-—————— = 0
a a2 4
STEP
7
:
Rewriting the whole as an Equivalent Fraction

7.1 Adding a whole to a fraction

Rewrite the whole as a fraction using a as the denominator :

7 7 • a
7 = — = —————
1 a
Polynomial Roots Calculator :

7.2 Find roots (zeroes) of : F(a) = a2 + 3
Polynomial Roots Calculator is a set of methods aimed at finding values of a for which F(a)=0

Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers a which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number P/Q then P is a factor of the Trailing Constant and Q is a factor of the Leading Coefficient

In this case, the Leading Coefficient is 1 and the Trailing Constant is 3.

The factor(s) are:

of the Leading Coefficient : 1
of the Trailing Constant : 1 ,3

The value of a stock increased 1 1/4 points Monday morning. On Monday afternoon, the value of the stock decreased 1 2/3 points. On Tuesday morning, the value increased 1 1/2 points. What is the change in the stock's value? for middle school
A. - (1/12)

B. 1/12

C. 1 1/1

D. 2 5/12

Answers

Answer:

11/1

Step-by-step explanation:

(03.01 MC)
Select True or False. (1 point)

The expression 4x − 2(5x − 1) is equivalent to the expression 2 + 6x.

Select one:
True
False

Answers

Answer:

I want to say that it is false but I'm not sure

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

[tex]4x - 2(5x - 1) = 4x - 10x + 2 = \\ [/tex]

[tex] - 6x + 2[/tex]

Thus ; False

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

answer both please. i need help and its apart of my grade

Answers

the first one is 1/10 and the second one is -9/5

Answer: 9/10+(-4/5)= 1/10

             -2/5+(-7/5) =  -1 /4/5 or  -9/5

Two customers took out bank loans.
• Carl took out a 3-year loan for $20,000 and paid 5.00% interest compounded annually
• Steven took out a 5-year loan for $20,000 and paid 3.00% interest compounded annually
What is the difference between the amounts of interest Carl and Steve paid for their loans?
A)
$32.98
B)
$40.09
$52.91
D)
$86.94

Answers

Answer:

a

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Find the slope of the line shown on the graph

Answers

Answer:

no slope

Step-by-step explanation:

The line is a vertical line.

A vertical line has no slope.

The slope is undefined because the all x values are the same
Other Questions
The majority of Canadians are employed in what levels of economic activity? Primary and Secondary Primary and Secondary Tertiary and Quaternary Tertiary and Quaternary Secondary and Tertiary Secondary and Tertiary Primary and Quaternary Primary and Quaternary A carpenter is building a rectangular room with a fixed perimeter of 180 ft. What are the dimensions of the largest room that can be built? What is its area? As a result of having no power to collect taxes under the Articles of Confederation, the confederal government could only raise funds by doing which of the following?Select one:A. borrowing money on creditB. taxing the individual statesC. regulating internal tradeD. raiding Canadian mines Which coping strategy for dealing with depression or grief is external?-writing in a journal-finding creative outlets-setting personal goals-talking with friends and family PLEASE HELP!!!will give brainiest :) which is not a correct pairing between the parts of a plant and their functionsA. Pistil and stamen, reproductionB. stomata and guard cells, gas exchangeC. xylem and phloem, transportD. anther and stigma, glucose production How did federal and state governments respond to the development of suburbs during the post World War II era? Someone help plsby which rule are these triangles congruent? 11000011 00010011 00111010 00011101 / 00010010In this example of IP address, determine: class, hostID, netID. What question does Hugh have after analyzing his daughter's DNA? 4. Miss Hadad is looking at the drinks displayed in a refrigerated case at the back of the store. Shesees milk, water, juice, and shake products in a variety of flavors. She notices that many of theproducts include the word fortified on the label, and she wants to know what this means. Determine whether the equation 8x + y = 6 is linear . If so , graph the function . 30 points!! Nora wants to open a small business. Her grandfather will loan Nora $10,000 that she must repay in 4 years. Nora must also include an annual2% simple interest amount when she repays her grandfather. What is the total amount Nora's grandfather will recieve from Nora? question below (..............................) What is your favorite song? If I also like that song I will give Brainlist. State the slope using the following equation.y= 5/2x -4 Select the correct answer.Which part of the female reproductive system handles embryo growth?A. fallopian tubesB.ovariesC.uterusD.vagina I swear to god I'll mark brainliest for the best answer and explanation Columbus vs Indegenous peoples day:Which should be a United States federally recognized holiday The Lakeside Legends, a broomball team, joined a 16-team league. They played each oftheir 15 opponents 3 times. Every broomball game lasts for exactly 2 hours. At the end of theseason, how many hours had the team spent playing games? A building is acquired on January 1 at a cost of $860,000 with an estimated useful life of ten years and salvage value of $77,400. Compute depreciation expense for the first three years using the double-declining-balance method. (Round your answers to the nearest dollar.)