Which one is not a function? And why not ?

Which One Is Not A Function? And Why Not ?

Answers

Answer 1

Answer:

the selected answer/2

Step-by-step explanation:

not a function because the same y has 2 different x values


Related Questions

A circle has radius 1 unit. What percent of its area lies outside of the circle with the same center and a radius of 1/2?

Answers

Answer:

(3/4)pi

Step-by-step explanation:

Find the areas of the two circles and then subtract the smaller from the larger:

A of circle = (pi)r^2

Case 1:  r = 1 unit:  A = (pi)(1) = pi

Case 2:  r = 1/2 unit:  A = (pi)(1/2)^2 = pi/4

The area lying outside of the smaller circle is therefore (pi) - (pi)(1/4) = (3/4)pi

Which system of inequalities is shown?

a.y > x
y > 2

b. y > x
y < 2

c. y < x
y < 2

d. y < x
y > 2

Answers

Answer: Choice C

y < x

y < 2

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

Explanation:

The horizontal line is y = 2 since all points on this line have a y coordinate of 2. Eg: (0,2) and (5,2)

Since we shade everything below this line, we're describing the inequality y < 2. All points in the shaded region for this describe anything with a y coordinate smaller than 2. Eg: (7,1)

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

At the same time, we're also shading below the line y = x to form the inequality y < x.

So that's how we end up with this system

[tex]\begin{cases}y < x\\y < 2\\\end{cases}[/tex]

which describes the set of all points below the lines y = 2 and y = x. The dashed lines indicate that points on the boundary do not count as solution points. For example, (5,2) is not a solution because it rests on the upper horizontal boundary.

sorry last one!!
3 × x[tex]x^{2}[/tex] × y × 4z × x × 2y × z

Answers

[tex]\red{\bold{Answer:}}[/tex]

z1 Multiplied by z1 = z(1 + 1) = z2

[tex]\color{skyblue}{\boxed{\tt{Final\:Answer}}}[/tex]

= (3•2³x3y2z²)

Find five rational numbers between ⅗ and ⅘.

Answers

Answer:

2/3, 3/4, 7/10, 11/17, 13/17

Step-by-step explanation:

2/3,3/4,7/10,11/17, 13/17

4. Jenny sells two types of lanyards, solid color or
striped. She charges more for striped lanyards than
for solid color lanyards. The amount of money, in
dollars, that she collects from selling x lanyards of
one type and y lanyards of the other type can be
modeled by the expression 3x + 5y.
What does the variable y represent in this
situation?
A. The number of solid color lanyards sold.
B. The number of striped lanyards sold.
C. The selling price of one solid color lanyard.
OD. The selling price of one striped lanyard.

Answers

Answer:

The selling price of one striped lanyard

the person who answes my question can u stay because i have more thankyou

Answers

Answer:

c. 60 mins

Step-by-step explanation:

12 * 5 = 60

15 * 4 = 60

(-1, 5) (3,y) m=5 whats the value of my and whats the slope <3

Answers

Answer:

slope: 5

y = 25

Step-by-step explanation:

slope is m, and m = 5, so slope is 5.

y-5=5(x+1)...........set up point slope form

y-5=5x+5............distribute 5

y=5x+10..............add 5 to both sides

y=5(3)+10............plug in 3

y=25.....................simplify

Step-by-step explanation:

I am not sure you posted the question correctly.

m is the slope already. this comes from the point slope form

y - y1 = m(x - x1)

where x1, y1 are the coordinates of a point on the line.

so, the slope is 5 (and cannot be <3).

so, using the first point we get

y - 5 = 5(x - -1) = 5(x + 1) = 5x + 5

therefore

y = 5x + 10

for (3, y) we put 3 in as x

y = 5×3 + 10 = 15 + 10 = 25

it is (3, 25) for m = 5.

A sequence has a common ratio of Three-halves and f(5) = 81. Which explicit formula represents the sequence?

f(x) = 24(Three-halves) Superscript x minus 1
f(x) = 16(Three-halves) Superscript x minus 1
f(x) = 24(Three-halves) Superscript x
f(x) = 16(Three-halves) Superscript x

Answers

Answer:

f(x) = 16*(3/2)^(x-1)

Step-by-step explanation:

See attachment.

Answer:

B

Step-by-step explanation:

832.078107648 to the nearest whole number.

Answers

832 is rounded to the nearest whole number

Nikola buys a bouquet of 8 sunflowers for $18
what is the cost for 1 sunflower?

Answers

It’s either $2 or $1.50

4−(−8)= please help i need it now

Answers

Answer:

Step-by-step explanation:

I'll also give brainliest to the first to answer
1+1=x
A) x=1
B) x=2
C) x=3
D) x=4

Answers

Answer:

B) x = 2

Step-by-step explanation:

1 + 1 = x

2 = x

1 + 1 = 2

What is 9% as a fraction or mixed number in simplest form?

Answers

Answer:

9/100

Step-by-step explanation:

9×100 = 9/100 I think

It takes Martin 20 minutes to walk 5 laps around the school track what is the unit rate that Martin walk around the school track

Answers

Answer:

4 minutes per lap

Step-by-step explanation:

20/5 is 4

what is 3(a+b)-2(a-b)​

Answers

Answer:

a + b

Step-by-step explanation:

3(a+b)-2(a-b)​

=> 3a + 3b - 2a - 2b

=> a + b

Therefore, a + b is our answer

Answer:

a + 5b

Step-by-step explanation:

3(a + b) - 2(a - b) ← distribute both parenthesis

= 3a + 3b - 2a + 2b ← collect like terms

= a + 5b

Two sisters share an inheritance of $1 million by a ratio of 2:3. How much does each sister inherit

Answers

Answer:

$400,000 and $600,000

Step-by-step explanation:

2x = one sister amount

3x = the other sister amount

Total money = $1,000,000

5x = 1,000,000

 x =  1,000,000/5

 x = 200,000

2x = 2(200,000)  = $400,000

3x = 3(200,000) = $600,000

Check:  one sister amount + the other sister amount = $1, 000,000

              $400,000 + $600,000 = $1,000,000

ratio 2:3=2+3=5

so the first sisters share is

(2/5×1,000,000)

=200,000×2

=400,000.....thats the first sisters share

so....the second sister's share is

(3/5×1,000,000)

=3×200,000

=600,000.....thats the second sisters share

and to check if your answer is correct

you can add both of their shares

600,000+400,000=1,000,000.

Use the quadratic formula to solve x2 – 3x - 2 = 0

Answers

Answer:

C

Step-by-step explanation:

C

Answer:

c

Step-by-step explanation:

c is the answer to this problem

a
Lucy has a coin collection. She keeps 3 of the coins in her box, which is 25% of the
collection. How many total coins are in her collection?
Multiply/scale up to solve.
coins
3
25
100
percent

Answers

Answer:

3x4=12

12 coins in her collection

Step-by-step explanation:

25x4=100%

A parking garage charges $5. 50 to park for 4 hours and $7. 75 to park for 7 hours. If the cost is a linear function of the number of hours parked, what is the cost to park for 3 hours? $2. 25 $2. 50 $3. 25 $4. 75.

Answers

Step-by-step explanation:

So we are given 2 coordinates.

so in a linear equation, we have the given function:

y=mx+b

thus we should have an x value and a y value.

So let's set x to be the hours and y be the cost

With 2 sets of coordinates, we can solve for the slope (m in the function) of the function using rise/run or y1-y2/x1-x2

so with that being said,

7.75-5.5/7-4=m

2.25/3=m

.75=m

This is our slope.

Our formula will look like this: y=0.75x

Now we can determine how much it will cost in 3 hours by changing x to be 3 since x is the number of hours parked

y=0.75(3)

y=2.25

The cost to park for 3 hours will be $2.25

Hope This Helps :D

PLEASE HELP GIVING BRAINLIEST! :)
--------------------------------------------------------------------------------

Which is the correct translation of the sentence into an equation?

Four less than a number is 12.

A: n-12=4
B: n-4=12
C: 4-n=12
D: 12-n=4

Answers

Answer:

B

Step-by-step explanation:

n is a number. 4 less then that number translates to n-4, so the answer is B:

n-4=12

Hope that helps! :)

Answer:

C: n-4= 12

Step-by-step explanation:

To understand why this answer is correct, lets break down the sentence.

Four less = [tex]4-[/tex]The part "than a number" can be represented as n as in math, unknown numbers are variables in order to isolate them to and figure out their values. "is 12" will represent the sum of the equation as the sentence is clarifying that that 4 minus the variable n is equal to 12.

Revised Answer: n-4=12 is actually the answer as n can be any quantity, and n -4 =12 literally means n + (-4) = 12.

A pancake recipe calls for one egg for every three cups of flour. How many cups of flour do you need for four eggs?

Answers

Answer:

its multiplication 4 times 3 the product is 12

Step-by-step explanation:

first to answer get brainliest thankss :)

Answers

Answer:

47

Step-by-step explanation:

First, we find angle 2. It is a supplementary angle with that 104 exterior so we take 180-104=76. Angle 2 is 76.

Now that we have two angles of the triangle, we can set up the equation:

76+57+x=180

we have 180 because all three angles of any triangle equal 180.

solving for x:

simplify the equation, (x)+(76+57)=180

combine like terms, x+133=180

Subtract 133,  180−133=47

x=47.

A yard is 33.22 m long and 17.2 m wide.
(a) What length of fence must be purchased to enclose the entire yard?

(b) What area must be covered if the yard is to be fertilized? PLEASE HELP FOR A TEST

Answers

Answer:

A. = 100.84 m

B. 571.384 cubic m

Step-by-step explanation:

a.

33.22+33.22+17.2+17.2 =100.84m

b.

33.22x17.2 = 571.384 m2

What number is 73% of 14.6

Answers

Answer:

10.658

hope it helps

Answer:

10.658

Step-by-step explanation:

14.6 = 100%

? = 73%

73% ÷ 100% x 14.6

= 10.658

10.658 = 73%

there are 50 students in a class and 30 of these students passed their social studies test. what percentage of these students passed their test.

Answers

Answer: 60 %

Step-by-step explanation:

Percentage of students passed the test = (number of students who passed the test / total number of students) x 100

                                                                     = 30 / 50 x 100 % = 60 %

Graph the following features: Slope = 4 Y-intercept = 4​

Answers

Answer:

Step-by-step explanation:

Equation of the line

[tex]\\ \sf\longmapsto y=mx+b[/tex]

m=4b=4

[tex]\\ \sf\longmapsto y=4x+4[/tex]

solve pls brainliest

Answers

Answer:5868<9845<91387<969156

Step-by-step explanation:

The table shows the total amounts y (in thousands of dollars) of money a homeowner saves on electric bills x years after installing solar panels.

a. Write an equation that models the total amount of money saved as a function of the number of years after the solar panels were installed.

y = _______

b. Interpret the slope and y-intercept of the line of fit.

Answers

The slope of the line means that the homeowner saves 1.6 thousand dollars per year while the y intercept means that the cost of installing the solar panels is 12 thousand dollars.

A linear equation is given by:

y = mx + b

where y, x are variables, m is the rate of change, b is the initial value of y (y intercept).

Let y represent the total money in thousand dollar saved for x years.

Taking the points (0, -12) and  (20, 20).

The equation is given as:

[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\\\y-(-12)=\frac{20-(-12)}{20-0} (x-0)\\\\y+12=1.6x \\\\y=1.6x-12[/tex]

The slope of the line means that the homeowner saves 1.6 thousand dollars per year while the y intercept means that the cost of installing the solar panels is 12 thousand dollars.

Find out more at: https://brainly.com/question/13911928

15
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
What value of p makes the equation true?
–3p +1/8 = -1/4
p=
Reset
Next

Answers

Answer:

[tex]p=\frac{1}{8}[/tex]

Step-by-step explanation:

[tex]-3p+\frac{1}{8}=-\frac{1}{4}[/tex]

Subtract [tex]\frac{1}{8}[/tex] from both sides:

[tex]-3p=-\frac{1}{4}-\frac{1}{8}[/tex]

Multiply [tex]\frac{1}{4}[/tex] by [tex]\frac{2}{2}[/tex] and simplify:

[tex]-3p=-\frac{3}{8}[/tex]

Divide both sides by -3:

[tex]p=\frac{3}{24}[/tex]

Simplify:

[tex]p=\frac{1}{8}[/tex]

How do I rewrite the following expression is there a form 1/4 (4x+8) please help me it’s gonna help my grade

Answers

Answer:

You can expand this with this rule:

[tex]a(b+c)=ab+ac[/tex]

Similarly,

[tex]\frac{1}{4}(4x+8) =\frac{1}{4}*4x+\frac{1}{4}*8[/tex]

[tex]\frac{1}{4}*4x+\frac{1}{4}*8=x+2[/tex]

Other Questions
What features or elements of the story surprise me. What is the best English translation for speraveram? Express 6/8 as a percentage. A corporation issues for cash $8,000,000 of 20-year, 8% bonds, interest payable semiannually. The amount received for the bonds will be HELP PLEASE AHH I WILL GIVE BRAINLIEST Find the difference or type"impossible[1 -2 1] - [4 -5 -6] whats the answer can someone answer please y1xIf y=4 when x=49 find, x when y=14 An increasing amount of evidence suggests that being a person of color in a society filled with prejudice and discrimination takes a hidden toll in terms of average life span. The main concept the text uses to explain this is A. anger B. personality disorder C. depression D. stress5 points QUESTION 2Individual discrimination is defined as A. discrimination that is inherent in the entire social system. B. discrimination that pervades the practices of whole institutions such as housing or medical care. C. discrimination that individuals practice in their daily lives usually because they are prejudiced. D. that targets one individual minority group but not racial or ethnic groups in general.5 points QUESTION 3The text points out that most of the time whites are able to avoid unpleasant experiences such as being stopped by the police or being mistaken for a bellhop in a hotel because of their race. The text states these are examples of what social scientists commonly refer to as A. white privilege B. racial elitism C. white perogative D. racial entitlement5 points QUESTION 4An ethnic group is a A. collection of people who share certain common physical characterisitcs B. a group that has been treated unfairly by society C. collection of individuals who are located on the same level of the social class ladder D. subgroup of a population with a set of shared historical, social, and cultural experiences.5 points QUESTION 5According to group threat theory A. individuals with various problems become frustrated and tend to blame them on minority groups. B. prejudice arises from competition over jobs and from disagreement over political issues C. certain personalities, that are prone to racial and ethnic prejudice, develop in childhood in response to parents who practice harsh discipline. D. people who are prejudiced are merely conforming to the culture in which they grew up.5 points QUESTION 6Which of the following statements concerning the changing nature of prejudice is true? A. Modern stereotypes about African Americans are less likely to view their poverty as due to cultural inferiority. B. The Nazi experience and the civil rights movement reinforced pre-existing views that whites held of African Americans. C. Whites are more likely than ever to view African Americans as biologically inferior. D. Jim Crow racism has been replaced by a more subtle form of racial prejudice termed symbolic or laissez-faire racism.5 points QUESTION 7The Kerner Commission's 1968 report A. disproved the main propositions set forth in An American Dilemma. B. provided strong evidence that relations between racial and ethnic groups improved during the time period from the 1930s to the 1960s C. documented the unfair treatment given to Catholic immigrants in the 1950s. D. reminded the nation that little had been done to improve race and ethnic relations in America since the publishing of An American Dilemma.5 points QUESTION 8What is the term for a concept that has no objective reality but rather is what people decide it is? A. social fact B. emergent property C. reality sui generis D. social construction5 points QUESTION 9Scholars such as Elijah Anderson argue that even if a street culture or oppositional culture exists among some African Americans, it stems from the segregation and poverty that individuals face in their daily lives and and helps them deal with these difficulties. True False5 points QUESTION 10The _________ explanation for racial and ethnic inequality states that a failure to value hard work and a lack of strong family ties account for the poverty and other problems facing minority groups. A. biological B. conflict C. structural D. cultural How did Alaska die in the story looking for Alaska The table shows information about all students in a Year 7 form class. Age 11Age 12TotalGirls8917Boys81018Total161935A student is selected at random from the register.Find the probability of selecting a boy. Give your answer in its simplest form. What is the lcm of 24, 18, and 6 Whats the cartoon the Filipinos first bath mean Read the excerpt from "A Modest Proposal. " Whereas the maintainance of an hundred thousand children, from two years old, and upwards, cannot be computed at less than ten shillings a piece per annum, the nation's stock will be thereby encreased fifty thousand pounds per annum, besides the profit of a new dish, introduced to the tables of all gentlemen of fortune in the kingdom, who have any refinement in taste. And the money will circulate among our selves, the goods being entirely of our own growth and manufacture. Which sentence best paraphrases the excerpt? England will save a great deal of money because they will not have to maintain the cost of raising poor children. The money will circulate amongst themselves. Swift states that wealthy gentlemen with good taste will now have a new dish to buy and consume at mealtimes. Swift argues that caring for thousands of children will cost more than ten shillings a piece each year. His proposal to eat the children would increase the circulation of money by fifty thousand pounds yearly and strengthen Englands economy. Breeding, selling, and eating impoverished children will benefit the people of England in more than one way. Technician A states that about 33% of the heat energy created is wasted by being dumped straight outof the exhaust to the atmosphere. Technician B states that 33% is wasted by internal friction and fromradiating off hot engine components straight to the atmosphere. Who is correct?Select one:A. Technician AB. Technician BC. Both A and BD. Neither Anor B There are 412 eighth-grade students at a middle school. About of the eighth-grade students ride the bus. Of the eighth-grade students that ride the bus, are females.Approximately how many eighth-grade students that ride the bus ?aremale?A 110B. 140C. 165D. 275 what method is recommended for a weekly review of the tasks on your to-do list? A 12 N force is used to extend a spring with a spring constant of 84 N/m. Calculate the extension of the spring. If x = 5, find the value ofa) x2b) (x + 3)^2. the 2 is meant to be squared how do i do all these problems i don't understand surface area?the paper is named volume and surface area of composite figures plz tell me a easy way im in class