Which relations represent functions ?

Which Relations Represent Functions ?

Answers

Answer 1
Answers 1 and 3 are functions.
Answer 2

Answer: First and third

Step-by-step explanation:

A function is a special kind of relation between two variable such that each input corresponds to exactly one output.

In the given pictures, the first and third picture are representing function  because each input corresponds to exactly one output.

In second and fourth picture one input value corresponds to two output values.

i.e. a corresponds to 25 and 55 and x corresponds to 7 and 5 in output.

Which Relations Represent Functions ?

Related Questions

Which of the following equations represents a line that is parallel to y=5x-4 and passes through the point, (3,4)?

Answers

Slope of given line = 5

Slope of parallel lines is the same, so slope of the line parallel to the given line will be m = 5

We have the slope and a point, using the point-slope form we can write the equation of the line:

y - 4 =5 (x - 3)

y = 5x - 15 + 4

y = 5x - 11

So, the above equation is the desired answer.
The given equation is of the form y=mx+c where m is the slope of line.
Comparing given equation with y=mx+c we get m=5

Parallel lines have equal slopes.
Therefore, slope of required line = m = 5

This required line passes through points (3,4)(x₁,y₁)
Therefore, by slope-point form,

y-y₁=m(x-x₁) 
y-4=5(x-3)
y-4=5x-15
y=5x-11

This the equation of required line

Can someone answer a b and c. Will mark brainliest!!!!

Answers

b= max $8.17 min=$8.05
c=$9.05

5 − (x + 5) > −2(x + 4)

Answers

x>−8 answer  <<

step by step work

Let's solve your inequality step-by-step.5−(x+5)>−2(x+4)
Step 1: Simplify both sides of the inequality.−x>−2x−8
Step 2: Add 2x to both sides.−x+2x>−2x−8+2x
[tex]5-(x+5) > -2(x+4)\\\\5-x-5 > -2\cdot x-2\cdot4\\\\5-5-x > -2x-8\\\\-x > -2x-8\ \ \ |add\ 2x\ to\ both\ sides\\\\x > -8\to x\in(-8;\ \infty)[/tex]

Use absolute value to express the distance between −13 and 17 on the number line

Answers

Answer:

Step-by-step explanation:

Distance between two points a and b  using the absolute value is given by

|b-a|.

Here we have a=-13

and b =17

so

Distance = | 17- (-13) |

Distance = |17 +13 |

Distance = | 30 |

Distance = 30 units

In absolute value, the distance is written as |30|

The given points:

[tex](x_1, x_2) = (-13, 17)[/tex]

To find:

the distance between -13 and 17

The distance between the two points on a number line is calculated as;

[tex]Distance = \sqrt{(x_2-x_1)^2} \\\\Distance = \sqrt{(17--13)^2}\\\\Distance = \sqrt{(30)^2} \\\\Distance = + /- \ \ 30[/tex]

In absolute value, the distance is written as;

Distance = |30|

Learn more here: https://brainly.com/question/23224485

A cable is 50 meters long. How long is the cable in decimeters?

Answers

500 because when you have dm multply it 
1 meter equals 10 decimeters.

Knowing that, 50*10=500

So, 50meters=500decimeters.

I hoped this helped!

Which equation has no solution?

4(x + 3) + 2x = 6(x + 2)
5 + 2(3 + 2x) = x + 3(x + 1)
5(x + 3) + x = 4(x + 3) + 3
4 + 6(2 + x) = 2(3x + 8)

Answers

Answer:

5+ 2(3+2x) = x + 3(x+1) or B

Step-by-step explanation:

correct on edge 2021

The Equation have No solution is 4(x + 3) + 2x = 6(x + 2).

What is Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

First, 4(x + 3) + 2x = 6(x + 2)

4x + 12 + 2x = 6x + 12

6x + 12 = 6x+ 12

0 = 0

Thus, the equation have No solution.

Second, 5 + 2(3 + 2x) = x + 3(x + 1)

5 + 6 + 6x = x + 3x + 1

6x+ 11 = 4x+ 1

2x = -10

x= -5

Thus, the equation have one solution.

Third, 5(x + 3) + x = 4(x + 3) + 3

5x+ 15 +x = 4x + 12 + 3

6x +15 = 4x + 15

2x = 0

x= 0

Thus, the equation have one solution.

Learn more about equation here:

https://brainly.com/question/29657983

#SPJ7

if you invest $100 a month into a retirement account paying 6% interest compounded monthly, how much will you have after 35 years?

Answers

Here's the equation for one year:
0.06(100) + 100
But because it is 35 years:
35(0.06(100)) + 100
2.1(100) + 100
We can make it simpler:
3.1(100)
310
You will have $310

a pillow is in the shape of a regular pentagon. The front of the pillow is made form 5 pieces of fabric that are congruent triangles. Each triangle has an area of 22in squared. What is the area of the front of the pillow?

PLEEAASSEEEEE HHHHHEEEEELLLLLLLPPPPPPPPP !!!!!!!!!!!!!!!!!!!!!!

Answers

fifty-five hope it's right
1 triangle = 22 in²
5 triangles = 22 x 5 = 110 in²

Answer: Area of the pillow = 110 in²

ΔABC and ΔXYZ are similar triangles. If BA = x + 9, AC = x + 7, YX = x + 5, and XZ = x + 4, find the value of x.

Answers

Solution:

we are given that ΔABC and ΔXYZ are similar triangles.

As we know , when two triangles are similar then the ratios of their corrsponding sides are equal.

Here we have

BA = x + 9, AC = x + 7, YX = x + 5, and XZ = x + 4

So we can write

[tex] \frac{x+9}{x+5}= \frac{x+7}{x+4}\\ \\ (x+9)(x+4)=(x+7)(x+5)\\ \\ x^2+13x+36=x^2+12x+35\\ \\ 13x-12x=35-36\\ \\ x=-1\\ \\  [/tex]

Hence then value of x=-1.

Answer:

-1

Step-by-step explanation:


HELP ME PLEASE 20 POINTS TO WHOEVER ANSWERS!

Answers

Bigger Triangle:
Perimeter = (4x + 2) + (5x - 4) + (7x + 7) 
Perimeter = 4x + 2 + 5x - 4 + 7x + 7
Perimeter = 16x + 5

Smaller Triangle:
Perimeter = (x + 3) + (2x - 5) + (x + 7)
Perimeter = x + 3 + 2x - 5 + x + 7
Perimeter = 4x + 5

Diffference = 16x + 5 - (4x + 5)
Difference = 16x + 5 - 4x - 5
Difference = 12x

Answer:
(a) Bigger Triangle =  16x + 5 ; Smaller Triangle =  4x + 5
(b) Difference = 12 x
Blue triangle- 

a. 16x + 5.   To do this problem you combine all of the like terms, and that is your equation.


Pink triangle-

a. 4x + 5 You do the same steps you did before, combine like terms.

b.  12x   "The difference" means subtraction.  So you subtract the like terme
s of both the problems and get 12x.

Hope this helps!!

A photo of a painting measures
13 inches by 17 inches. The scale factor
is 1
3 . What size is the painting?

Answers

The size of the painting is [tex]\( \frac{13}{3} \) inches by \( \frac{17}{3} \)[/tex] inches.

If the photo of the painting has dimensions of 13 inches by 17 inches and the scale factor is 1/3 it means that the dimensions of the painting itself are 1/3 times the dimensions of the photo.

To find the size of the painting, we need to multiply the dimensions of the photo by the scale factor.

For the length:

[tex]\[ \text{Length of painting} = 13 \times \frac{1}{3} = \frac{13}{3} \][/tex]

For the width:

[tex]\[ \text{Width of painting} = 17 \times \frac{1}{3} = \frac{17}{3} \][/tex]

PLEASE HELP!!!!!!!!!!!
The latest online craze is a new game, Khan on Seven. You get 100 points for playing the game. In addition, you get 50 points for each seven-letter word you are able to make with the ten letters you are given. The game leader currently has 17,950 points. Sal wants to break the record and needs 18,000 points or more to do so.

Write an inequality to determine how many seven-letter words, w, Sal will need to make to break the record.

Identify which graph represents the solution set to this inequality.

Answers

Let the number of 7-letters words made be x.

Points Sal needs to make : at least 18000 or more.

Construct Equation:
100 + 50x ≥ 18000

Take away 100 from both sides:
50 x≥ 17900

Divide both sides by 50:
 x ≥ 17900 ÷ 50 

Answer:
x ≥ 358

Answer : C x ≥ 358
>358 would be the correct answer hope did helps :)

8. Find the measure of the third angle of a triangle given that the first two angles are 44o and 72 o. Show your work.

Answers

44+72=116

180-116=64

3rd angle=64

64+44+72=180

44+72=116

180-116=64

3rd angle=64

64+44+72=180

If the area of a square is 64 square centimeters, whats the length of one side?

A. 8cm
B. 32cm
C. 16cm
D. 4cm

Answers

It's A. 8x8 is 64. Therefore, 8cm is correct.
It would be A because a square has four equal sides. To determine if this is right, you would find the square root of 64 which is 8. To check, find the answer to 8 to the power of two or 8 times 8 which is 64.

what is the difference between the greatest green bean weight and the least green bean weight

Answers

what are the weights? 

A license plate comprised of 3 letters followed by 3 numbers is to be chosen (repetition is allowed). If the first letter cannot be a "Z", how many different ways can this occur? In your answer, include the set up and calculations for the license plate. Complete your work in the space provided or upload a file that can display math symbols if your work requires it.

Answers

Because there are 26 Letters, there are 25 possibilities for the first letter, and 10 choices for the numbers, so:
25*26*26*10*10*10
Multiply:
650*26*1000
16900*1000
There are 16,900,000 possibilities

Georgie's toy car collection consists of modern and classic cars. He has four times as many classic cars as he cars. If he has 320 total cars in his collection, how many modern cars does he have?

Answers

Use a system of equations to solve this problem. Let "x" represent the number of classic cars, and "c" represent the number of cars.

320 = x + c
x = 4c

In this case, it'll be easiest to use the substitution method to solve the system of equations.

320 = (4c) + c
320 = 5c

Now solve for "c":

320/5 = c
c = 64

Since you now know there are 64 regular cars, you can subtract that from the total amount for the number of classic cars.

320 - 64 = 256

There are 256 classic cars.

To check the answer, multiply 64 by 4 and make sure it equals 256.

64 x 4 = 256

Please solve both, graph and show work. answer also has to be in y=mx+b format.

2x-y=1 and x+y=2

Answers

2x-y=1                        
-2x       -2x
-----------------
-y=-2x+1
Multiply by -1
y=2x-1

 x+y=2
-x        -x
------------
y= -x+2

What is the correct meaning of the word particular?
Millie looked through all of the markers until she found the particular shade to color the flowers
A) extremely rare
B) separate and distinct
C) easily seen or noticed
D) commonly occurring

Answers

Your answer is B - Seperate and Distinct

Answer:

Step-by-step explanation:

The answer is B

CAN SOMEONE HELP! please - Give brainliest to best
PLEASEEEEE

Answers

Part A

Answer: 7/36
This is in fraction form
The decimal version of this number is roughly 0.1944

-----------------------------------

To get this answer, we multiply the fractions 7/9 and 2/8

The fraction 7/9 is the probability of selecting purple on the first draw. There are 7 purple out of 9 total (2+7 = 9)

The fraction 2/8 is the probability of selecting white on the second draw. This is assuming we don't put the first selection back in the bag. There are 2 white out of 8 marbles over

Multiply the fractions to get:
(7/9)*(2/8) = (7/9)*(1/4) = (7*1)/(9*4) = 7/36

============================================================
Part B

Answer in fraction form: 1/36
Answer in decimal form: 0.0278 (which is approximate)

------------------

We have 2 white out of 9 total. So the probability of getting white the first time is 2/9

After we select and don't put that first selection back, we have 1 white out of 8 left over. The probability of getting white a second time is 1/8

Multiply the fractions:
(2/9)*(1/8) = (2*1)/(9*8) = 2/72 = 1/36

============================================================
Part C

Answer: There is a greater chance to get two purple in a row

------------------

Without doing any math, you can tell that purple is more likely simply because there are more purple than white. We have 7 purple and 2 white. For any given single selection, we have a greater chance of picking purple over white.

If you want do to the math, then the probability of selecting two white marbles in a row is 1/36 = 0.0278 which was found in part B above. 

The probability of selecting two purple is (7/9)*(6/8) = (7/9)*(3/4) = (7*3)/(9*4) = 21/36 = 7/12 = 0.5833

In summary, 
the probability of selecting two white marbles in a row is 0.0278
the probability of selecting two purple marbles in a row is  0.5833
we see that the probability for the two purple marbles is much greater

Answer:

Step-by-stPart A

Answer: 7/36

This is in fraction form

The decimal version of this number is roughly 0.1944

-----------------------------------

To get this answer, we multiply the fractions 7/9 and 2/8

The fraction 7/9 is the probability of selecting purple on the first draw. There are 7 purple out of 9 total (2+7 = 9)

The fraction 2/8 is the probability of selecting white on the second draw. This is assuming we don't put the first selection back in the bag. There are 2 white out of 8 marbles over

Multiply the fractions to get:

(7/9)*(2/8) = (7/9)*(1/4) = (7*1)/(9*4) = 7/36

============================================================

Part B

Answer in fraction form: 1/36

Answer in decimal form: 0.0278 (which is approximate)

------------------

We have 2 white out of 9 total. So the probability of getting white the first time is 2/9

After we select and don't put that first selection back, we have 1 white out of 8 left over. The probability of getting white a second time is 1/8

Multiply the fractions:

(2/9)*(1/8) = (2*1)/(9*8) = 2/72 = 1/36

============================================================

Part C

Answer: There is a greater chance to get two purple in a row

Without doing any math, you can tell that purple is more likely simply because there are more purple than white. We have 7 purple and 2 white. For any given single selection, we have a greater chance of picking purple over white.

If you want do to the math, then the probability of selecting two white marbles in a row is 1/36 = 0.0278 which was found in part B above. 

The probability of selecting two purple is (7/9)*(6/8) = (7/9)*(3/4) = (7*3)/(9*4) = 21/36 = 7/12 = 0.5833

In summary, 

the probability of selecting two white marbles in a row is 0.0278

the probability of selecting two purple marbles in a row is  0.5833

we see that the probability for the two purple marbles is much greater

Jackson flipped a coin ten times. He flipped heads 4 times and tails 6 times. What is the experimental probability that Jackson will flip heads on his next flip?

Answers

Answer:

1.5 i think

Step-by-step explanation:

6/4=1.5

What decimal part of 440 is 220? Please, show work!

Answers

you will have to multiply 440x220 then you divide and your answer will be 0.24
440/220=2 so 220 is .5 of 440

Find the circumference of the circle. Round to the nearest tenth.

A.) 148.4 m

B.) 84.8 m

C.) 196.6 m

D.) 54.0 m

Answers

Ans is B
HOPE I CAN HELP U
circumference = 2πr = 2 * (27/2) * π = 27π ≈ 84.8

what is a rational number?

Answers

A rational number is: A number that can be written as a quotient of 2 integers, where the divisor is not 0.

Example: 2/5 , -6, 

Because you can write any integer as a quotient with a denominator of 1, all integers are rational numbers, 

Example: 5 = 5/1

~Aamira~

Hope this helped☺☺
Any real #’s, like 5, 2/7, 1.4

Tabitha and her parents drive to Dallas for a wedding after 90 minutes Tabatha's father tells her that they have travel 105 miles what is the average rate of speed the car travel in 90 minutes

Answers

tabitha and her parents drives 1.16 mph. hopes this helps u.
1.16 minutes per mile or.085 miles per minute

what is the solution to the linear equation? 2.8y+6+0.2y=5y-14

Answers

2.8y+6+0.2y=5y-14
Combine like terms
3y+6=5y-14
Subtract 6 from both sides
3y=5y-20
Subtract 5y from both sides
-2y=-20
Divide both sides by -2

Y=10

Answer:

Step-by-step explanation:

D)10

Select from the drop-down menu to correctly compare the numbers.
50−−√ 6.237...

A ≤

B =

C ≥

Answers

Answer:the answer is c

Step-by-step explanation:

I just did the test I got at 100

Does 21.6,28.8,36 equal a right triangle

Answers

yes it does hope this helped

the formula for finding the area of a triangle is a equals 1/2 x base height a triangle has height 12 in an area of 54 in squared what is the length of its base

Answers

How to Set Up:
54=1/2 x b x 12
54 =6b
54/6
9=b

What is the domain of this function

Answers

Hello!

The domain is the numbers that makes the function real

If we put x as 4 we get an undefined answer since you can't divide by 0

From this the domain is 4 > x < 4

Hope this helps!

Answer:

Domain (-∞,4)U(4,∞)

Step-by-step explanation:

Inmagine functions as little machines that turn one number into another, the domain would the numbers that we can enter to the machine so we would have a real number on the output of it.

In this specific case we can use all the numbers but 4 because if we make [tex]x=4[/tex]  we would have [tex]\frac{12}{4-4}=\frac{12}{0}[/tex] and this is an indeterminate form which won't be solution to the problem.

According to the explanation our domain would be all the numbers but 4 like this:

Domain (-∞,4)U(4,∞)

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