Is the following relation a function? Justify your answer. [(3, 1), (4,2), (3,9),(1,4), (2, 6)}​

Answers

Answer 1

Answer:

yes

Step-by-step explanation:

I think it the relation between arrow daigram or matrix


Related Questions

PLEASE HELP


is 18 35 and 53 going to make a right triangle

Answers

Answer:

No.

Step-by-step explanation:

53 + 35 = 88, add 18 = 106.

Answer:

no

Step-by-step explanation:

18x18 + 35 x35 = 53x53

324 + 1225 = 2809

1549 =\ 2809

Rob is flying a kite with a string that makes a 70-degree angle with the ground. If the kite string is 27 meters long, how high is the kite above the ground?

(Please use the exact ratio to calculate the missing side and round your answer to the nearest hundredth.)

The kite is meters above the ground.

Answers

Answer:

25.37

Step-by-step explanation:

Use SOH or Sin∅=[tex]\frac{opposite}{hypotenuse}[/tex]

So Sin(70)= [tex]\frac{x}{27}[/tex]

Multiply both sides of the equation to end up with 27Sin(70)=x

Plug into your calculator in degrees and you get 25.37m

Will mark BRAINLIEST! Show work ​

Answers

Answer:

15%

Step-by-step explanation:

1. Subtract final value from starting value

65 - 55.25 = 9.75

2. Divide 9.75 by original number

9.75/65 = 0.15

3. Multiply quotient by 100 to get percentage

0.15 x 100 = 15%

PLS HELP a parabola has the equation y = 4x^2 + bx -2 and the equation for the axis of symmetry is x = -1.

Answers

Answer:

Step-by-step explanation:

Remark

Unless you know calculus, the only way to solve this is by completing the square.

Solution

y = 4x^2 + bx - 2

y = 4(x^2 + b/4 ) - 2

y = 4(x^2 + b/4 + (1/2b/4)^2 ) - 2 - 4*(b/8)^2

y = 4(x^2 + b/4 + (b/8)^2 ) -  2 - b^2/16

y = 4(x + b/8)^2 - 2 - b^2/16

Now what you want to happen is to give b/8 a value of 1 so that when x is put in -1 you get 0 for  what is inside the brackets.  

b/8 = 1

b = 8

y = 4(x + 1)^2 - 2 - (8)^2 / 16

y = 4(x + 2)^2 - 2 - 4

y = 4(x + 1)^2 - 6

The vertex is at (-1, - 6)

The axis of symmetry  is x = - 1

Note

This could have been done a lot shorter just by realizing that the number inside the brackets had to be + 1 as in (x + 1). But then you would not have been able to know the minimum value for y which is - 6

how do u solve rational exponent equations​

Answers

Equations in which a variable expression is raised to a rational exponent can be solved by raising both sides of the equation to the reciprocal of the exponent. The reason the expression is raised to the reciprocal of its exponent is because the product of a number and its reciprocal is one.

Rectangle ABCD is the image of ABCD after the reflection of which of the following lines

Answers

Answer My best guess is D

Step-by-step explanation:

What is 5 1/2 - 3 1/4=? Ty if you answer.

Answers

Answer:

2.25

Step-by-step explanation:

your welcome. oh and make it a improper fraction then subtract:)

Answer:

2 1/4

Step-by-step explanation:

or 3.25 in decimal form

Can someone help me?!!!


Only C and D plz!!!!! Lots of points!! If you can’t read let me know!!!!

Answers

Answer:

d I do believe

Step-by-step explanation:

can you help me with my question In the following passage from "The Story of an Hour," what type of conflict does Mrs. Mallard describe? Sec. 10: There would be no powerful will bending hers in that blind persistence with which men and women believe they have a right to impose a private will upon a fellow-creature. A. man vs. nature B. man vs. soll C. man vs. society

The answer is letter D

which of the following is NOT equivalent to 36%

Answers

Answer:

Wait, what are you talking about?

Answer:

Is there any options for your question?

Step-by-step explanation:

For a school fundraiser, Jessica will make T-shirts. She will order T-shirts and print graphics on them. Jessica must spend $255 on a printing machine and
$6.80 per shirt for the blank shirts, Ink, and other supplies.
Part
What is the maximum number of T-shirts Jessica can make with a budget of $1,000?
Explain your answer or show your work:

Answers

You’d need to start by subtracting initial cost from the budget, so

1000-255= 745

You then divide the 745 by the cost of making each shirt,

745/6.80= 109.56

Since you can’t make .56 of a shirt, and the budget says we can’t round up, you can only make 109 shirts.

Hope that helps!

What is an equivalent ratio to 5:10?

Answers

Answer:

1:2

Step-by-step explanation:

Its just like fractions

You can simplify it.

What is the area of the polygon below.

Answers

Answer:

336 ft²

Step-by-step explanation:

The figure is composed of a rectangle and a right triangle

A of rectangle = length × breadth = 24 × 12 = 288 ft²

A of Δ = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )

Here b = 32 - 24 = 8 ft and h = 12 , then

A of Δ = [tex]\frac{1}{2}[/tex] × 8 × 12 = 4 × 12 = 48 ft²

composite area = 288 + 48 = 336 ft²

Find the measure of the largest angle in the diagram below.

Answers

Answer:

The largest angle is 102

Step-by-step explanation:

2x + 3x + 10 = 180

5x + 10 = 180

5x = 170

x = 34

2(34) = 68

3(34) + 10 = 102

Answer:

Step-by-step explanation:

102

60 degrees 30 degrees 72 degrees 46 83 97 215 457

Answers

pretty sure its 97° i might be wrong

what is the LCM of 5 and 7

Answers

Answer:

35

Step-by-step explanation:

Answer:

the answer is 35.

Step-by-step explanation:

why is no one helping me...i want a good grade but I need someone who is good with slope and is smarter than a 8th grader BUT NO no one wants to help me

Answers

Answer: what is the question

Step-by-step explanation:

Please I need help on these, dosent need to be right.

Answers

Answer:

Plug in the numbers in the table to find the pattern.

Step-by-step explanation:

how many terms are in the given expression 7x+5w+23t+3

Answers

Answer:

4

Step-by-step explanation:

7x 5w 23t 3

Leon has $50 in a savings account that earns 10% interest, compounded annually. To the nearest cent, how much interest will he earn in 2 years?

Answers

Answer:

$10.50

Step-by-step explanation:

Interest = future value - amount saved

The formula for calculating future value:

FV = P (1 + r)^n

FV = Future value  

P = Present value  

R = interest rate  

N = number of years

$50 x (1.1)^2 = $60.50

Interest = $60.50 - $50 = $10.50

solve the inequality -d ≥ 0.5

Answers

Answer:

d ≤ -0.5

Step-by-step explanation:

Multiply each term by -1

18) PB = 8. Find PA.

Answers

PB and PA make two sides a rhombus. Since the lengths of the short sides of a rhombus are equal— this also applies for the long sides— PB=PA
PA = 8

Good luck!

A piece of copper tubing is in the shape of a hexagonal prism. The area of the base of the prism is 3 square centimeters. The volume of the prism is 51 cubic centimeters. What is the height of the tubing? ​

Answers

Answer: 17 cm

Step-by-step explanation:

For a regular figure where the area of the base is B, and the height is H, the volume is calculated as:

V = B*H

Here we know that the base of the prism is B = 3 cm^2, and the volume of the prism is 51 cm^3

Then:

B = 3cm^2

V = 51cm^3

If we replace those in the equation above, we get:

51 cm^3 = (3cm^2)*H

Solving this for H gives:

(51 cm^3)/(3 cm^2) = H = 17 cm

The height of the tubing is 17 cm

9+7x=4x-9 Solve for X.. Help?

Answers

Answer:

-6 srr if you get it wrong

Step-by-step explanation:

9 + 7x = 4x - 9

7x - 4x = - 9 + (- 9)

3x = -18

x = -6

In an endurance race, Alyson rode her bicycle 7 miles less than Jeff. Together they rode 39 miles. How far did Alyson ride?

Answers

Answer:

Distance cover by Alyson = 16 miles

Step-by-step explanation:

Given:

Distance cover together = 39 miles

Assume;

Distance cover by Jeff = a

Distance cover by Alyson = a - 7

Find:

Distance cover by Alyson

Computation:

a + (a - 7) = 39

2a - 7 = 39

2a = 46

a = 23

Distance cover by Alyson = a - 7

Distance cover by Alyson = 23 - 7

Distance cover by Alyson = 16 miles

simplify a-(a+b)
(it's not b or a-b)

Answers

Answer:

-b

Step-by-step explanation:

a-(a+b)

a-a-b

-b

-b a-(a+b)
a-a-b
-b

(0,4) (5,1) (3,8) (6,3) (5,9)function or non function?

Answers

Answer:

Not a function

Step-by-step explanation:

x repeats, you have 5 mapped to 1 and 5 mapped to 9 so you have to have a one-to-one relationship with your points if it is a function

Preparation for the homecoming football game, members of the student body are painting the spirit rock in front of the school. If Angela works alone, it will take her five and a half hours. If Brandon works alone, it will take him 7 hours. If they work together, it will take them approximately hours ?

Answers

Answer:

3.08 hours

Step-by-step explanation:

Preparation for the homecoming football game, members of the student body are painting the spirit rock in front of the school.

If Angela works alone, it will take her five and a half hours.

If Brandon works alone, it will take him 7 hours. If they work together, it will take them approximately hours ?

This is calculated as:

The Number of hours they worked together = T

1/5.5 + 1/7 = 1/T

= 7 + 5.5/(5.5)(7)

= 12.5/38.5

1/T = 12.5/38.5

Cross Multiply

12.5T = 38.5

T = 38.5/12.5

T = 3.08 hours

The time required when Angela and Brandon work together, for the preparation for the homecoming football game, is 3.08 hours.

What is the relation between work and time?

The total time taken is inversely proportional to the rate of work. If a unit of work is done in total n number of days, then the total work done in a day can is,

[tex]W_1=\dfrac{1}{n}[/tex]

In preparation for the homecoming football game, members of the student body are painting the spirit rock in front of the school.

If Angela works alone, it will take her five and a half hours. The work done by Angela in one hour is,

[tex]A=\dfrac{1}{5.5}\\A=\dfrac{2}{11}[/tex]

If Brandon works alone, it will take him 7 hours. The  work done by Brandon in one hour is,

[tex]B=\dfrac{1}{7}[/tex]

The work done in one hour, when the work together,

[tex]A+B=\dfrac{2}{11}+\dfrac{1}{7}\\A+B=\dfrac{14+11}{77}\\A+B=\dfrac{25}{77}\\A+B=\dfrac{1}{3.08}[/tex]

Thus, the time required when Angela and Brandon work together, for the preparation for the homecoming football game, is 3.08 hours.

Learn more about the work and time here;

https://brainly.com/question/25572872

At a school bake sale, all of the pies were cut into 6 pieces, so each person who bought a piece got ⅙ of a pie. Each slice sold for $2. The were sold out. How much money did the kids make if there were 11 pies sold? B. How many slices were sold?

Answers

$132 and they sold 66 slices

Answer:

They made 132$, and 66 slices were sold.

Step-by-step explanation:

If all of the pies were cut into six pieces, and each piece costed $2, then you can multiply 6 x 2 to determine how much each pie cost. ($12)

If each pie costed $12 and there were 11 pies sold in total, then you can multiply 12 x 11 to find out how much money they made.

And to find out how many slices they sold you just have to multiply the 11 total pies by 6 because each pie had six pieces.

What is the probability that I flip a coin three times and they are all heads? (Round to the nearest percent)​

Answers

Answer:

There is probability of 33%.

find the pyramid surface area 3ft 5ft 3ft

Answers

tell the height, width and depth then we will help

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