Is it a function or not a function?

Is It A Function Or Not A Function?

Answers

Answer 1

Answer:

Not a function

Step-by-step explanation:

Fails the vertical line test

Answer 2

Answer:

No a circle is not a function.

Step-by-step explanation:

A function is a mapping from 1 set to another

eg, 1 to 2

3 to 4

while a circle it maps the same point to another

meaning it has more than two input/output

(if u get what i mean)


Related Questions

The equation a = 26w gives the area of a (in square feet) of a rectangle dance floor with a width of w feet help please this is hard

Answers

Answer:

26ft

Step-by-step explanation:

Complete Question:

The equation a = 26w gives the area of a (in square feet) of a rectangle dance floor with a width of w feet. Find its length

Formula for calculating the area of a rectangle is expressed as shown;

Area of a rectangle = Length * Width

Given the equation a = 26w that gives the area of a rectangle

On comparing with the formula;

Length * Width = 26w

Length = 26ft (by comparison)

Hence the length of the rectangle is 26ft

Which is the correct spelling of trigonometry

Answers

Answer:

trigonometry

Step-by-step explanation:

hope this helps lovely

Answer:

trigonometry

Step-by-step explanation:

Have a great day!

3T= _______lbs


8,000 lbs


6,000 lbs


4,000 lbs


2,000 lbs

Answers

Answer:

3 t = 6000 lb

Step-by-step explanation:

Hope it is helpful...

Solve and find out which king of solutions is it
x-y=-2
-x+y = 4

Answers

Answer is in the photo. I can only upload it to a file hosting service. link below!

tinyurl.com/wpazsebu

Dividend:

2x3 + 11x2 + 18x + 9

-6x3 - 15x - 9

2x2 + 5x + 3
Quotient:

2x4 + 11x3 + 18x + 9

2x3 + 5x2 + 3x

2x2 + 5x + 3

Answers

Answer:

Divisor-D Dividend- A Quotient-C

Step-by-step explanation:

It is to be noted that in the subtopic of Polynomials, a dividend is the factor or element being divided while the element that results from the division of one number using another is called the quotient.

What is a Divisor?

In mathematics, a divisor is a factor or number that divides another leaving no remainder.

That is Dividend/Divisor = Quotient. It is important to note that in Polynomials, there is usually more than one similarity as far as the terms are concerned.

The full question is unavailable hence the general answer.

Learn more about dividends at:
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After one side of a square was enlarged by 2 inches and the other side was enlarged
by 3 inches, the area of the shape was doubled.
What was the side of the square?

Answers

Answer:

6 inches

Step-by-step explanation:

basically, first write an equation

2x^2 = x^2 + 5x + 6

then simplify this into

x^2 = 5x + 6

then use sum-product pattern and factor

(x - 6)(x + 1) = 0

then split into two equations

x - 6 = 0, x + 1 = 0

so, you have x = 6 and x = -1

because it can't be negative, 6 is your answer

WILL GIVE BRAINLIEST!
Write the expression as a difference of squares.
25x2 − 4
Factor the difference of squares.
25x2 − 4

Answers

Answer:

(5x-2)(5x+2)

Step-by-step explanation:

Differences of squares is basically (a2-b2) = (a-b) (a+b)

a = 5x and b = 2 in this case

Brainliest is appreciated :)

Four friends order pizza from a take away.
The amount of pizza each person eats is shown as a fraction below.
Matthew eats 0.8 of a pizza
3
Lily eats 1/4 of a pizza
George eats 77 % of a pizza
Sam eats 82% of a pizza
Which person eats the most pizza?

Answers

Answer:

Sam

Step-by-step explanation:

Mathew: 0.8 = 80%

Lily: 1/4 = 25%

George: 77%

Sam: 82%

pls help me im dying. I did 22 math study islands and my mom is still making m do more. My brain isnt working i dont remeber how to do this nd i dnt have the motivation to anymore please help me.

Answers

Answer:

Okay its okay

Step-by-step explanation:

The answer is A
but you need to calm down

Hi, guys I am sorry to bother you but can yall help me. I will also be giving 540 points for free.

Answers

Answer:

question one C D E question two is A

How many times do you need to regroup to subtract 316 from 624?

Answers

you need to equal them out, so it is actually 48 over 56 (times by 8) subtract 7 over 56 (times by 7). so the answer is 41 over 56.

Y=x-1 what's the slope please help me I have a test!! :/

Answers

Answer:

you need to add them toether since there is only one .

Step-by-step explanation:

1=y-x

linear equations that share the same slope are peroendicular. true or false​

Answers

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

:This is FALSE Linear equations that share the same slope are PARALLEL.

:

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-

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

A support wire for a utility pole is 40 feet long. The wire is attached to the ground 24 feet from the base of the pole. How tall is the utility pole?

Answers

Answer:

32 feet

Step-by-step explanation:

given the following;

Length of wire = 40feet = hypotenuse

Base of the pole = 24 feet = adjacent

Required

Height of the pole (opposite)

Using the pythagoras theorem;

hyp^2 = opp^2 + adj^2

40^2 = 24^2 + opp^2

1600 = 576 +opp^2

opp^2 = 1600 - 576

opp^2 = 1024

opp = √1024

opp = 32feet

Hence the utility pole is 32feet tall

Someone find x !!!!!!

Answers

14. 128
15.25
16.90
those should be right

The eyes of a basketball player are 5 feet above the floor. The player is at the free throw line, which is 15 feet from the point on the floor directly below the center of the basket. The rim of a standard basketball hoop is 10 feet of the floor. What is the angle of elevation from the player's eyes to the center of the rim?

Answers

Answer:

18.44°

Step-by-step explanation:

The line of sight of the player to the rim, the height of the eyes of the player above the floor, the distance of the player from the center of the rim and the height of the center of the rim above the ground form a trapezium. The height  of the center of the rim above the ground and  the height of the eyes of the player above the floor form parallel sides.

Since The height  of the center of the rim above the ground = 10 ft and the height of the eyes of the player above the floor = 5 ft, the height of the triangular part of the trapezium is 10 ft - 5 ft = 5 ft. The base of this triangle is parallel to the side of distance of the player from the center of the rim = 15 ft. So the base of this triangle is 15 ft. Since the angle of elevation Ф of the line of sight of the player to the rim is adjacent to this base = 15ft and opposite to the height of the triangle = 5ft,

By trigonometric ratios,

tanФ =opposite/adjacent = 5 ft/15 ft = 1/3

Ф = tan⁻¹(1/3)

Ф = 18.435°

Ф ≅ 18.44°

Janu had $120 she gave 5/8 of it to Richard and 3/10 of it to rancho what percentage of the money was left with her

Answers

Answer:
26.25% is left to Janu
Explanation:
($120 ➗ 8 = $15)
$15 x 5 = $75
Janu gave 5/8 ($75) to Richard, she is left with $45
$45 ➗ 10 = $4.50
$4.50 x 3 = $13.50
Janu gave 3/10 ($13.50) to Rancho, she is left with $31.50
$31.50 is also 26.25% of $120
Hopefully this helps :3 sorry if wrong :( plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3
-Bee~

I need the answer very fast plz hurry

Answers

Answer:

2x=110 degree

2y=70 degree

HELP QUICKLY,100 POINTS!!!


A) The stop sign is a regular octagon, so the measure of angle F must be 67.5°. What is the angle measure for angle L?


B) What is the measure of angle E? Explain how you know.


C) What is the measure of angle K?


D) What is the measure of angle H? Explain

Answers

Answer:

A) ∠L = 67.5°

B) ∠E = 112.5°

C) ∠K = 112.5°

D) ∠H = 67.5°

Step-by-step explanation:

A) ∠L is alternate interior to ∠F so it is equal to 67.5°

B) ∠E is supplementary to ∠F so ∠E = 180° - 67.5° - 112.5°

C) ∠K is alternate exterior to ∠E so ∠K = 112.5°

D) ∠H is a vertical angle to ∠F so ∠H is 67.5°

8 baseball players share 18 apples

Answers

Answer:

each get 2 and 1/4 of an apple :) pls give brainliest

Step-by-step explanation:

may i get help with 5-9 questions pls

Answers

Answer:

5) r=40 gals/min

6) r= 125 mm/hr

7) $2600

8) d = 36 in

9) h= 1176 m

Step-by-step explanation:

5) r=v/r

r= 15,600 gals ÷ 390 mins

r= 40 gals/min

6) r=v/t

r= 1000mm ÷ 8 hrs

r= 125 mm/hr

7) $4500 - $1900 = $2600

8) C = Pi x d

c/Pi =d

113 in/3.14 = d

d = 36 in

9) Formula for h

h = 2 x a/b

h = 2 (84m2/12m)

h = 2 (7056/12)

h = 2(588)

h = 1176 m

A window shaped like a parallelogram has an area of 73 2 3 square feet. The height of the window is 8 2 3 feet. How long is the base of the window?

Answers

Answer:

8 1/2 feet

Step-by-step explanation:

Here is the complete question

A window shaped like a parallelogram has an area of 73 2/3 square feet. The height of the window is 8 2/3 feet. How long is the base of the window?

A parallelogram is  quadrilateral that has two pairs of parallel sides. The opposite sides  equal in length

Area = base x height

73 2/3 = 8 2/3 x base

divide 73 2/3  by 8 2/3

221/3 x 3/26 = 8 1/2 feet

six times the sum of nine and a number

Answers

Answer:

6(9+x)

Step-by-step explanation:

Answer:

[tex]6(x + 9)[/tex]

mmm it's according to me

Solve for x in the diagram below.
120°
3xº
21
X =

Answers

Answer:

x = 40

Step-by-step explanation:

[tex]3x \degree = 120 \degree \\(vertical \: \angle s) \\ \\ x \degree = \frac{120 \degree}{3} \\ \\ x \degree = 40 \degree\\ \\ x = 40[/tex]

Tony is installing a rectangular pool in the backyard. The pool
needs to have a length of 10 feet more than the width. The
backyard is a square shape with each of the sides measuring 5
feet more than 3 times the width of the pool. Write an
expression for the area surrounding the pool after the pool is
installed. Show your work. Enter the correct expression and
work in the box.
Pls I need helppppppp

Answers

Answer:

Abackyard = (3w + 5)2

Apool = w(w + 10)

Asurround = (3w + 5)2 - w(w + 10)

A=8w2+20w+25

The expression for the area surrounding the pool after the pool is

installed is  (3w + 5)² - w(w + 10).

What is Area?

The total space occupied by a flat (2-D) surface or the shape of an object is defined as its area. The area of a plane figure is the space enclosed by its boundary. The number of unit squares that cover the surface of a closed form is the figure's area.

We have,

The pool needs to have a length of 10 feet more than the width.

Then, the area of pool is

= w(w + 10)

and, The backyard have sides measuring 5 feet more than 3 times the width of the pool.

Then, area of backyard

= (3w + 5)²

Now, the area surrounding the pool after the pool is

=  (3w + 5)² - w(w + 10)

Learn more about Area here:

https://brainly.com/question/27683633

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Hannah decided to curl up and read a good book. She started reading at 10:00 a.m. and
finished reading at 11:43 a.m. How much time did she spend reading? (SHOW YOUR WORK PLEASE!! I WILL GIVE BRAINLIEST TO BEST ANSWER WITH EXPLANATION BUT I NEED 2 PEOPLE TO ANSWER TO DO THIS)

Answers

Answer:

1 hour and 43 minutes or 103 minutes

Step-by-step explanation:

There are 60 minutes in an hour, so from 10 am to 11 am is 60 minutes. The additional 43 minutes need to be combined with the 60 minutes, which will give you 103 minutes.

Answer:

1 hour and 43 minutes

Step-by-step explanation:

10:00am+ 1 hour = 11:00 am

11:00 am + 43 minutes = 11:43

Hope this helped!! :3

Sandra took 4 tests in math and her mean score was 18. I she scored 18, 22, and
17 in three tests, find Sandra's score in the fourth test.

Answers

Answer:

15

Step-by-step explanation:

(18+22+17+x)/4=18

18+22+17+x=18×4

57+x=72

x=72-57

x=15

PLS HELP I REALLY NEED THE ANSWER

Answers

Answer:

2b: -29 - 13x - 6n

3a: -6

3b: m = 1

The width of your desk is 26 inches. How long is 75% of the width? Round to the nearest tenth if necessary.

Answers

Answer:

19.5

Step-by-step explanation:

Mutiply 26 by .75

Which of the following represents a function?

Answers

Answer:

D

Step-by-step explanation:

Hello There!

In order for a relation to be a function the x value cannot repeat

In answer choice  A the x value 3 repeats therefore a cannot be the answer

In answer choice B the x value -1 repeats therefore B cannot be the answer

In answer choice C the x value -1 repeats therefore C cannot be the answer

In answer choice D none of the x values repeat so d is your answer

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