Which relation below represents a function?
1) {(1,5),(2,6), (3,6), (2,7)}
2) {(4,7),(2,1),(-3,6).(-3,4)}
3) {(-1,6),(1,3), (2,5),(1,7)}
4) {(-1,2).(0,5),(5,0),(2, -1)}

Answers

Answer 1

Answer:

4.

Step-by-step explanation:

To find a function none of the x-values can be the same. For example, #1 isn't a function because 2 of the x values re 2 meaning it is not a function. #4 is a function because all of the x values are different numbers.


Related Questions

PLEASE HELP!!

What is the y-intercept?

Answers

Judging by your graph, it should be 30 :)

Answer:

y- intercept = 30

Step-by-step explanation:

The y- intercept is the value on the y- axis (vertical) where the graph crosses

Each square on the vertical has a value of 10

The graph crosses the vertical axis 2 squares below 50.

Then y- intercept = 30

In the adjoining figure, XY = XZ . YQ and ZP are the bisectors of [tex] \angle[/tex] XYZ and [tex] \angle[/tex] XZY respectively. Prove that YQ = ZP.
~Thanks in advance ! ♡

Answers

Answer:

See Below.

Step-by-step explanation:

Statements:                                              Reasons:

[tex]1)\, XY=XZ[/tex]                                              Given

[tex]2) \text{ $ m\angle Y= m\angle Z$}[/tex]                                        Isosceles Triangle Theorem

[tex]\displaystyle 3) \text{ $m\angle Y=m\angle XYQ + \angle QYZ$}[/tex]                  Angle Addition

[tex]\displaystyle 4)\text{ $YQ$ bisects $\angle XYZ$}[/tex]                               Given

[tex]5) \text{ $m\angle XYQ=m\angle QYZ$}[/tex]                           Definition of Bisector

[tex]\displaystyle 6)\text{ $m\angle Y=2m\angle QYZ$}[/tex]                               Substitution

[tex]7)\text{ $m\angle Z=m\angle XZP+m\angle PZY$}[/tex]              Angle Addition

[tex]8)\text{ $ZP$ bisects $\angle XZY$}[/tex]                              Given

[tex]\displaystyle 9) \text{ $m\angle XZP=m\angle PZY$ }[/tex]                          Definition of Bisector

[tex]\displaystyle 10) \text{ $ m\angle Z = 2m\angle PZY $}[/tex]                            Substitution

[tex]11)\text{ } 2m\angle QYZ=2m\angle PZY[/tex]                    Substitution

[tex]12)\text{ }m\angle QYZ=m\angle PZY[/tex]                        Division Property of Equality

[tex]13)\text{ } YZ=YZ[/tex]                                         Reflexive Property

[tex]14)\text{ } \Delta YZP\cong\Delta ZYQ[/tex]                             Angle-Side-Angle Congruence*

[tex]15)\text{ } YQ=ZP[/tex]                                         CPCTC

*For clarification:

∠Y = ∠Z

YZ = YZ (or ZY)

∠PZY = ∠QYZ

So, Angle-Side-Angle Congruence:

ΔYZP is congruent to ΔZYQ

Answer:

this is your answer. look at this once.

this picture sucks I know but help me please :))

Answers

Answer:

See step by step

Step-by-step explanation:

The student found the cosine of angle A not the sine. Sine is Opposite/Hypotenuse. This student found Adjacent/Hypotenuse. The correct answer is Sin A= 12/13.

determine if the sequence below is arithmetic or geometric and determine the common difference/ ratio in simplest form. 3, 12, 48,​

Answers

Answer:

i think  

3 ,  

12

12 ,  

48

48 ,  

192

192  ,  

768

768

Write and solve an inequality to find the values of x for which the perimeter of the rectangle is less than 136.

The diagram says x+4 on the top and x on the side

please help me solve this thanks

Answers

Answer: 4x+8<120

x<28

Step-by-step explanation:

As per the statement in the question, the inequality will be 4x + 8 < 136.

What is inequality?

Inequalities are mathematical expressions where neither side is equal. In inequality, as opposed to equations, we compare the two values. Less than (or less than and equal to), larger than (or greater or equal to), or not similar to signs are used in place of the equal sign in between.

As per the instructions given in the question,

The length (l) of the rectangle = x+4

The width (w) of the rectangle = x

As per the formula of the perimeter, P:

P = 2 (l + w)   (i)

Put the values in (i)

P = 2 (x + 4 + x)

P = 2x + 8 + 2x

P = 4x + 8

Then the inequality as per the statement in the question will be,

4x + 8 < 136.

To know more about inequality:

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ansswer plz i been stuck on this for 10 min help ??

Answers

9514 1404 393

Answer:

  33 ft²

Step-by-step explanation:

Each triangle's area is given by the formula ...

  A = (1/2)bh

  A = (1/2)(3 ft)(4 ft) = 6 ft²

The square base area is given by ...

  A = s²

  A = (3 ft)² = 9 ft²

__

The total area of the pyramid is the area of the base plus the area of four triangular faces.

  Total Area = (9 ft²) + 4(6 ft²) = (9 +24) ft²

  Total Area = 33 ft²

find the nth term of 5 9 14 18 5 23

Answers

first of all it is not in the form of A. P because d=a2-a1=9-5=4,a3-a2=14-9=4,a4-a3=18-14=4,a5-a4=5-18= -13,a6-a5=23-5=18

tell whether each equation has one solution no solution or infinitely may solutions 2x+5=5x-1​

Answers

Answer:

2x+5=5x-1​ =2 so it sould be one soulution

Step-by-step explanation:

Can someone answer this question i am having an issue to how to figure it out

Answers

Answer:

explanation below

Step-by-step explanation:

f(x) = 3x + 2

f(8) : replace x with 8    f(8) = 3 * 8 + 2 = 26

g(x) = 5x

g(a+2) : replace x with a+2    g(a+2) = 5 (a+2) or 5a + 10

please I am struggling really bad help me

Answers

A I’m pretty sure that’s the answer

ayúdaaaaaa si no me van a dar con la chancla​

Answers

Answer:

1. 54 (muy bien!!!)

2. 270

3.440

Henry left his house at time zero and drove for 2 minutes to the store at a speed of 6 blocks per minute. Then he stopped and went into the store for 5 minutes. From there, he drove in the same direction at a speed of 1 block per minute until he got to the bank, which is 2 blocks away from the store. He stopped at the bank for 3 minutes. Then he drove home at a speed of 7 blocks every 5 minutes. Make a graph of showing the number of blocks away from home that Henry is
x
x minutes after he leaves his house, until he gets back home.

Answers

Answer:

Step-by-step explanation:

b hbbjnhbjjnh

Please help whats the answer

Answers

The Answer is -12x+6

There are 195 adults and 320 children at a zoo. The zoo makes a total of $6,515 from the entrance fees, and the cost of an adult and a child to attend is $27, how much does it cost each for a parent and a child? Let a represent an adult. Let c represent a child. Enter a system of equations to represent the situation, then solve the system.

Answers

Answer:

a+c=27

195a+320c=6515

Step-by-step explanation:

adult (a): 195

children (c): 320

total $: $6515

child $: 27

a+c=27 --> c=-a+27

195a+320c=6515

sub the first equation into the 2nd equation to get a=17

sub a=17 into c=-a+27 to get c=10

so, an adult ticket is $17 and a child ticket is $10.

Give me a correct answer and you’ll get brainliest

Answers

1c is equal

1d not equal

1b is equal

1a is not equal

Mario and Luigi ran laps to train for their race. The ratio of number of laps Mario ran to the number of laps Luigi ran was 4:5. If they ran a total of 27 miles, how many miles did Luigi run

Answers

Answer:

15 miles

Step-by-step explanation:

They both ran a total of 9 laps and 9 laps = 27 miles

This means each lap is 3 miles.

So Luigi ran 15 miles cause he ran 5 lap and each lap is 3 miles

can someone please help me with this !

Answers

The screen is blurry


Dante buys his lunch every day at school. After 15 days, Dante has spent $37.50 on school
lunches. At this rate, how much did Dante spend on school lunches after 5 days?

Answers

Answer:

12.5

Step-by-step explanation:

37.50÷15=2.5

2.5×5=12.5

Answer: $12.50

Step-by-step explanation:

You have to divide 37.5 by 15 which is 2.5 then multiply that by 5 which is 12.5.

Estimate the total weight of two million pounds worth of two pence coins in kilograms. A two pence coin weighs 7.1g.

Answers

Answer: 710,000 kg

Step-by-step explanation:

There are 100 pence in one pound.

The number of two pence coins in 1 pound is therefore:

= 100 / 2

= 50 coins

In 2 million pounds therefore, there will be:

= 50 * 2,000,000

= 100,000,000 two pence coins

If one coin weighs 7.1g, weight is:

= 100,000,000 * 7.1

= 710,000,000 g

A kg is 1,000 grams so the weight in kg is:

= 710,000,000/1,000

= 710,000 kg

Thomas is saving money for a new mountain bike. The amount (a) Thomas needs to save is more than $50.45. Which inequality models the amount Thomas needs to save?

Answers

Answer: a>$50.45

Explanation:This is because the amount is more than what he needs to save, considering that he is probably has some money in his bank already.

Hope this helps (:

Answer: The answer is a > 50.45 since the amount of A is larger than 50.45

Step-by-step explanation:

what is the slope of a line that has a y-intercept but no x-intercept

Answers

Answer:

A line that crosses the y-axis but not the x must be horizontal. Therefore, it has no slope.

Can u give me the best answer u can?

Answers

Answer:

19

Step-by-step explanation:

46x0.84=38.64

That means you have to score at least a 39 to pass.

19 students have 39 or better.

I have a friend Robert who is an expert at taking the difference of consecutive perfect squares. This means that if I give him a number $x$, he immediately computes $$x^2 - (x - 1)^2$$and gives me the result. I decided one day to first give Robert the number $9$, then the number $6$, and finally the number $4$. Robert gave me three numbers in return. What is the sum of these three numbers?

Answers

Answer:

35

Step-by-step explanation:

Please look at the attachment down below.

Hope this helped! :)

The  sum of three number is 35.

What is Square?

A square number is the result when a number has been multiplied by itself.

For example, 25 is a square number because it's 5 lots of 5, or 5 x 5.

Given:

if the number given is 9

9² - (9 - 1)² = 9² - 8²

                 = 81-64

                  = 17.

if the number given is 6.

6² - (6 - 1)² = 6² - 5²

                 = 36-25

                 = 11.

if the number given is 4.

4² - (4 - 1)²= 4² - 3²

                = 16-9

                = 7.

Thus, the sum of three number is

=17 + 11 + 7

= 35

Learn more about square here:

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I NEED HELP ASAP!!! 100 POINTS
If 0 < f ≤ 90 and cos(22f − 1) = sin(7f + 4), what is the value of f?
f=3
f=4
f=5
f=6

Answers

Answer:

A

Step-by-step explanation:

We are given:

[tex]\cos(22f-1)=\sin(7f+4)[/tex]

Recall the co-function identity:

[tex]\sin(\theta)=\cos(90-\theta)[/tex]

Let θ = 7f + 4. So:

[tex]\sin(7f+4)=\cos(90-(7f+4))[/tex]

Substitute:

[tex]\cos(22f-1)=\cos(90-(7f+4))[/tex]

Remove the cosine:

[tex]\displaystyle 22f-1=90-(7f+4)[/tex]

Distribute:

[tex]22f-1=90-7f-4[/tex]

Subtract:

[tex]22f-1=-7f+86[/tex]

Add 7f and 1 to both sides:

[tex]29f=87[/tex]

Therefore:

[tex]f=3[/tex]

Please helpppppppppppppppppppppppppp

Answers

Answer:

the answer is D or A

Step-by-step explanation:

step-by-step explanation

I hope this helps

What is the domain. How do I find it?​

Answers

Answer:

All real numbers

Step-by-step explanation:

Here, we want to get the domain

The domain refers to the possible x values of the function

As we can see, the plot extends thoroughout the entirety of the graph

This extends from positive infinity to negative infinity

This means that the domain is all real

numbers

A model of a famous statue is 3 1/2 inches tall. The actual statue is 5 1/4 feet tall. What is the ratio of the height of the model to the height of the actual statue in simplest form?

Answers

Given:

A model of a famous statue is [tex]3\dfrac{1}{2}[/tex] inches tall. The actual statue is [tex]5\dfrac{1}{4}[/tex] feet tall.

To find:

The the ratio of the height of the model to the height of the actual statue in simplest form.

Solution:

We have,

Height of the model = [tex]3\dfrac{1}{2}[/tex] inches

Height of the actual statue = [tex]5\dfrac{1}{4}[/tex] feet.

Now, the ratio of the height of the model to the height of the actual statue is:

[tex]\text{Ratio}=\dfrac{\text{Height of model}}{\text{Height of actual statue}}[/tex]

[tex]\text{Ratio}=\dfrac{3\dfrac{1}{2}\ in.}{5\dfrac{1}{4}\ ft}[/tex]

[tex]\text{Ratio}=\dfrac{\dfrac{3(2)+1}{2}\ in.}{\dfrac{5(4)+1}{4}\ ft}[/tex]

[tex]\text{Ratio}=\dfrac{\dfrac{7}{2}\ in.}{\dfrac{21}{4}\ ft}[/tex]

We know that 1 ft = 12 in.

[tex]\text{Ratio}=\dfrac{\dfrac{7}{2}\ in.}{\dfrac{21}{4}\times 12\ in.}[/tex]

[tex]\text{Ratio}=\dfrac{\dfrac{7}{2}\ in.}{21\times 3\ in.}[/tex]

[tex]\text{Ratio}=\dfrac{7}{2\times 21\times 3}[/tex]

[tex]\text{Ratio}=\dfrac{1}{2\times 3\times 3}[/tex]

[tex]\text{Ratio}=\dfrac{1}{18}[/tex]

Therefore, the ratio of the height of the model to the height of the actual statue in simplest form is [tex]\dfrac{1}{18}[/tex].

The length of the highway is 700 miles. If 1 inch represents 75 miles, what is the length of the highway on the map?

Answers

Answer:

9.33333 inches.

Step-by-step explanation:

700 / 75?

13 = -4x +9 solve equation.

Answers

Answer:

-1x or -x

Step-by-step explanation:

4 divided by -4

HELP PLS IM not smart it’s due tonight ‍♀️

Answers

Answer:

Option 3

Step-by-step explanation:

SAS Triangle Congruence Theorem

Answer:

option- 3 which is sas theorum

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