All functions have a domain and a range.
True
False

Answers

Answer 1

Answer:

True

Step-by-step explanation:

The definition of the function is a relation with exactly one x for each y. x is the domain, and y is the range, so all functions have a domain and a range.


Related Questions

Can someone help with this problem

Answers

35+25=60
y=60


If you add the opposite side values of the triangle (not the one touching the y), you get the value of y). 35+25=y
This works because y+x= 180 and the three angles of a triangle add to 180.

Step-by-step explanation:

x+35+25=180

x+60 =180

x = 120.

y+x =18

1. Describe the graph of the line x=5

Answers

Answer: a Line going up and down

Step-by-step explanation:

Answer:

See explanation below

Step-by-step explanation:

The line x = 5 would be vertical and lies on x = 5 within the x-axis.

Write a phrase in words to match each expression.
5+3
——
n

Answers

Answer:

sum of five and 3 is divided by n

If we want to provide a 95% confidence interval for the mean of a population, the confidence coefficient will be

Answers

Step-by-step explanatiosorry don't understand question be more specific

Rewrite the expression using rational exponents .

Answers

Answer:

Step-by-step explanation:

[tex]\sqrt[5]{(3y)^{4}} = [(3y)^{4}]^{\frac{1}{5}}=(3y)^{4*\frac{1}{5}}=(3y)^{\frac{4}{5}}[/tex]

Find the missing angle in the image below. Do not include spaces in your answers ** Can somebody help me fr everybody keep giving me the wrong answer

Answers

Answer:

measure of angle V + measure angle W = VUF

Answer:

∠ VUF = 94°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles

∠ VUF is an exterior angle of the triangle, then

∠ VUF = 71° + 23° = 94°

Find the area

Please help me

Answers

Answer: 24 square cm.

8*6=48

48/2=24

Answer:

24 cm^2

Step-by-step explanation:

(w*h)/2

Find the value of `x´ in the given parrallelogram.​

Answers

X=9

3x-12=x+6
2x-12=6
2x=18
X=9
The value of x is 9 cm in the given parrallelogram.

Step-by-step explanation:

=> (3x-12) =(x+6)

or,3x - x = 6 + 12

or,2x = 18

or,x = 18/2

: x=9#

solve the simultaneous equation: y=2x²+3x-31 y= x= 21-2x​

Answers

Answer:

1. x =(3-√257)/4=-3.258

2. x =(3+√257)/4= 4.758

Step-by-step explanation:

irst add  

x

to both sides of the second equation to get:

y = x + 3

Then substitute this expression for  y  into the first equation to get:

29 = x 2 + ( x + 3 ) 2 = 2 x 2 + 6 x + 9

Subtract  29  from both ends to get:

0 = 2 x 2 + 6 x − 20

Divide both sides by  2  to get:

0 = x 2 + 3 x− 10 = ( x+ 5 ) ( x − 2 )  

So  x = 2 or  x = − 5

If  x = 2  then  y = x + 3 = 5 .

If  x = − 5  then  y=x + 3 = − 2

So the two solutions  

( x, y )  are  ( 2 , 5 )  and  ( − 5 , − 2 )

Chad gets an annual salary of 25,000. He and his family spend 3500 per year on food. What percent of his salary is spent on food

Answers

Answer:

[tex]\frac{x}{100}[/tex] x 25000 = 3500

[tex]x[/tex] x 250 = 3500

x = 3500/250

x = 350/25

x = 14%

WILL MAKE BRAINLIEST IF CORRECT!!

What is the equation of the line? *easy*



Answers

Answer:

y = - 7

Step-by-step explanation:

The equation of a horizontal line parallel to the x- axis is

y = c

where c is the value of the y- coordinates the line passes through.

The line passes through all points with a y- coordinate of - 7, then

y = - 7 ← equation of line

The equation of the line is
Y= -7

Can someone help me with this math homework please!

Answers

Answer:

x = 48.125

Step-by-step explanation:

Explanation in progress! (●'◡'●)

Answer:

48.25

Step-by-step explanation:

first wirte the same qa and write long qa and write the ans in procesa

pls help w this

√2x+1 = 4
In the equation above, what is the value of 2x +1?
A) 3/2
B) 2
C) 4
D) 16

Answers

D :) because you have to square both sides of the equation to get the 2x+1 by itself which would equal 16

Answer:

[tex]\boxed {\boxed {\sf D. \ 16}}[/tex]

Step-by-step explanation:

We are given the following equation and asked to solve for 2x+1.

[tex]\sqrt {2x+1}=4[/tex]

We want to isolate the entire expression of 2x+1. Notice that it is under the square root. If we want to isolate it, we have to perform the inverse operation. The inverse of a square root is a square, so we square both sides of the equation.

[tex](\sqrt{2x+1} )^2= (4)^2[/tex]

[tex]2x+1=(4)^2[/tex]

[tex]2x+1=16[/tex]

We could continue solving for x, then plug the answer back into the expression 2x+1. However, hopefully you notice that we already found the answer!

We only had to do one step to find the answer, but you could complete many other steps to get the same answer:

[tex]2x+1-1=16-1\\2x=15\\2x/2=15/2\\x= 7.5[/tex]      (Solve for x)

[tex]2x+1\\2(7.5)+1\\15+1\\16[/tex]                   (Plug the answer in for x)

The value of 2x+1 is 16 and the correct answer is 16.

Find the measure of the indicated angle

Answers

Answer:

Step-by-step explanation:

This is an isosceles triangle because 2 of the sides are the same length (marked with single slashed through them). The Isosceles Triangle Theorem tells that if 2 sides are congruent to each other, then the angles opposite those sides are congruent to each other as well. That means that the bottom left angle measures 68. According to the Triangle Angle-Sum Theorem, all the angles of a triangle have to add up to equal 180, so:

x = 180 - 68 - 68 so

x = 44


Can someone help solve the problems 2-4

Answers

Answer:

1234567891011121314151617181920

Step-by-step explanation:

you just count

X
2
4
00
12
V
4
2.
1
2/3

Answers

Answer:

She used a graphing tool to display the data in a scatter plot, with x representing the number of ice cubes and y representing the milliliters of juice. Then she used the graphing tool to find the equation of the line of best fit:

y = -29.202x + 293.5

Step-by-step explanation:

Select the correct answer.

Maya collected data about the number of ice cubes and milliliters of juice in several glasses of juice and organized the data into this table

Graph the solution set to this inequality. -4(x+ 3) ≤-2x

Answers

Answer:

hey hope the given pic are helpful(sorry for my bad writing)

Team members Corinne, Kevin, and Tomas decide to share the cost
of 2 motor controllers and 4 wheels equally. How much does each
member need to contribute?
Please help(write step by step and upload pic or do it here please I appreciate it so much !

Answers

Answer:

each member needs to put in 91.70 dollars in.

Step-by-step explanation:

you add the costs of all the tools needed. in this case the two controllers and wheels which adds up to 275.1.

then you divide by the amount of people which is three. so 275.1/3 and you get 91.7

A washer and a dryer cost $587 combined. The washer costs $63 less than the dryer. What is the cost of the dryer?

Answers

Answer:

The dryer costs $325.

Step-by-step explanation:

Let w represent the cost of the washer and d represent the cost of the dryer.

They cost $587 combined. In other words:

[tex]w+d=587[/tex]

The washer costs $63 less than the dryer. Therefore:

[tex]w=d-63[/tex]

Thus, we have the system of equations:

[tex]\displaystyle \begin{cases} w+d = 587 \\ w=d-63\end{cases}[/tex]

We can solve it using substitution. Substitute the second equation into the first. Hence:

[tex](d-63)+d=587[/tex]

Combine like terms:

[tex]2d-63=587[/tex]

Add 63 to both sides:

[tex]2d=650[/tex]

And divide both sides by two. Hence:

[tex]d=325[/tex]

The dryer costs $325.

Further Notes:

And since the washer is $63 less, the washer costs:

[tex]w=(325)-63=262[/tex]

The washer costs $262.

An amusement park has discovered that the brace that provides stability to the ferris

wheel has been damaged and needs work. The arc length of steel reinforcement that

must be replaced is between the two seats shown. The sector area is 28.25 square

feet and the radius is 12 feet.

Brace that provides


A: 4.708

B: 2.669

C: 9.417

D: 2.354

stability to the ride

What is the length of steel that must be replaced?

04.708 feet

Answers

Answer:

Hence the correct answer is option (A) 4.708.

Step-by-step explanation:

Solution:-

Now, we need to find the angle of the sector by using sector  formula,

[tex]A = 28.25 ft^{2} \\r = 12ft.\\\\28.25 = \frac{\theta}{360^{o} } \times \pi \times 12^{2} \\\\\theta=\frac{28.25\times 360}{12 \times12 \times \pi} \\\\\theta =( \frac{70.625}{\\pi} )^{o}[/tex]

We now convert the angle to radian  

[tex]\theta = \frac{70.625}{\pi} \times \frac{\pi}{180}\\\\\theta = 0.39236 radian[/tex]  

Now we calculate the length of arc by arc formula  

[tex]\theta=\frac{I}{12} \\\\0.39236 =\frac{I}{12}\\\\I = 4.708 feet.[/tex]  

So, The length of steel that must be replaced is 4.708 ft.  

If sin theta equals to a divided by b what is the value of sec square theta minus tan square theta

Answers

Answer:

Square is the answer

hope it helps u

plz mark it as brainliest

find the volume of the cylinder in terms of pi and to the nearest tenth

Answers

Answer:

100π

Step-by-step explanation:

Before we even begin solving for the volume we should note that the question says to find the volume of the cylinder " in terms of pi". this means that if pi is present we do not apply it to our final answer and we just leave our answer as __pi

Having that being cleared let's find the volume

volume of a cylinder = πr²h

where r = radius and h = height

looking at the figure the cylinder has a known radius of 5in and a given height of 4in

so r = 5 and h = 4

that being said we want to plug in these given variables into the volume of a cylinder formula

V = πr²h

r = 5 and h = 4

V = π5²4

5²=25

25(4)=100

V = 100π

once again we must leave our answer in terms of pi so the final answer would be 100π

Grafico de deportes: fútbol 30%, atletismo 25%, tenis 5%, voleibol 10%, basquetbol 20%. Si 165 jóvenes prefieren el fútbol ¿cuantos prefieren el basquetbol?

Answers

Answer:

33 jóvenes prefieren el basquetbol.

Step-by-step explanation:

Hay 165 jóvenes.

De estos, 20% prefieren el basquetbol.

¿cuantos prefieren el basquetbol?

20% de 165, entonces:

[tex]20\% = \frac{20}{100} = 0.2[/tex]

[tex]0.2*165 = 33[/tex]

33 jóvenes prefieren el basquetbol.

Intercept Form
Point (-3,4)
Slope 5/3
m= b=

Answers

Answer:

y = 5/3x + 9

Step-by-step explanation:

y = 5/3x + b

4 = 5/3(-3) + b

4 = -5 + b

9 = b

If a= 5-2 root 6 then find the value of root a - 1/root a

Answers

Answer:

2\sqrt2

Step-by-step explanation:

a=5-2√6 ...(1)

[tex]\frac{1}{a}=\frac{1}{5-2 \sqrt{6} } \times\frac{5+2\sqrt{6} }{5+2\sqrt{6} } =\frac{5+2\sqrt{6}}{(5-2\sqrt{6})(5+2\sqrt{6})} =\frac{5+2\sqrt{6}}{5 ^2-(2\sqrt{6})^2} =\frac{5+2\sqrt{6}}{25-24} =5+2\sqrt{6}\\a+\frac{1}{a}=5-2\sqrt{6}+5+2\sqrt{6}=10[/tex]

[tex](\sqrt{a}-\frac{1}{\sqrt{a}})^2=(\sqrt{a})^2+(\frac{1}{\sqrt{a}})^2-2 \times \sqrt{a} \times \frac{1}{\sqrt{a}}=a+\frac{1}{a}-2=10-2=8\\\sqrt{a}-\frac{1}{\sqrt{a}}=\sqrt{8}=2\sqrt{2}[/tex]

Someone please help me with this math problem?

Answers

Answer:

(C) 0.3(10 + 4h) = 0.25(6h)

Step-by-step explanation:

Here's what we know about Fernando's fees:

$10 is the initial fee

$4 is the hourly fee (h)

Saves 30% (also written as 0.3) of the total cost (includes initial and hourly fee)

Here's what we know about Brenna's fees:

No initial fee

$6 is the hourly fee (h)

Saves 25% (also written as 0.25) of the total cost (just the hourly fee because she doesn't have an initial fee)

We want to find which hour Fernando and Brenna will have saved the same amount of money.

To do this, let's first set up an equation for Fernando and Brenna separately:

Fernando's equation:

0.3(10 + 4h) = how much money he saves from the total cost

Brenna's equation:

0.25(6h) = how much money she saves from the total cost

Now we set them equal to each other:

0.3(10 + 4h) = 0.25(6h)

There's your answer!

Hope it helps (●'◡'●)

If 0 < f ≤ 90 and cos(22f − 1) = sin(7f + 4), what is the value of f?

Answers

Answer:

3

Step-by-step explanation:

We are going to be using cofunction identity cos(90-x)=sin(x).

Apply to either side but not both.

cos(22f − 1) = sin(7f + 4)

sin(90-[22f-1])=sin(7f+4)

90-[22f-1]=7f+4

Distribute

90-22f+1=7f+4

Combine like terms

91-22f=7f+4

Add 22f on both sides

91=29f+4

Subtract 4 on both sides

87=29f

Divide 29 on both sides

3=f

f=3 is between 0 and 90

Answer:

The answer is "3."

Step-by-step explanation:

Just submitted the test and got the answer correct!

His year 16500 people visited a memorial site. This was an increase of 20% from the previous year. How many visitors were there in the previous year?

Answers

13,200. It is this because you multiply 16,500 by 0.20 and get 3,300. You then subtract 3,300 from 16,500 and get your answer of 13,200.

Find the value of cos C rounded to the nearest hundredth, if necessary

Answers

[tex]\bold{\frac{5}{13} or 0.38}[/tex]

Answer:

Solution given:

here

by using Pythagoras law

hypotenuse =

[tex]\displaystyle\sqrt{adjacent ²+opposite ²}\\=\sqrt{15²+36²}=39[/tex]

Cos C=[tex]\frac{adjacent} {hypotenuse}=\frac{15}{39}=\frac{5}{13} or{0.38}[/tex]

In an office there was a small cash box.One day ann took half of the money plus$1 more.Then dan took half of the remaining money plus$1 more.Stan then took the remaining $11.How many dollars were originally in the box?

Answers

Answer:

this as a equation looks like this

-1/2x+1+x=11

1/2x=10

x=20

Hope This Helps!!!

20 dollars were originally in the box

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

Given,

In an office there was a small cash box.

One day ann took half of the money plus$1 more

Then dan took half of the remaining money plus$1 more

Stan then took the remaining $11

-1/2x+1+x=11

Subtract 1/2x from both sides

1/2x=10

Multiply 2 on both sides

x=20

Hence, 20 dollars were originally in the box

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ5

Other Questions
There are 4 windows in the living room. Each window has 1 set of blinds and 2 panels of curtains. The blinds cost $20 each. Each curtain panel cost $28. How much do the window treatments cost? please solve this ............. question 3&4 help me please WILL GIVE BRAINIEST TO FIRST ANSWER Everyone knows that it is important to be fit throughout our lives, yet many people still make unhealthy choices. You are concerned that your parents are living a lifestyle that is putting them at risk for illnesses associated with aging. You know that many of these illnesses can be reduced or even prevented with a healthy lifestyle. Because you care about your parents, you are planning on having a discussion with them to explain the health risks associated with their current lifestyle and to encourage them to embrace a healthy lifestyle. What will you say to them? Find hyperbola equation. center (0,0) vertex (-2,0) focus (-5,0) Transform these sentences into interrogative. a. The train is whistling. b. She has stolen her purse.c. Bhumika will buy a skirt. d. Farmers were clearing the jungle. e. Laxmi can come with Rabin. In The Odyssey, what do the opening lines reveal about the subject of the poem? Sing to me of the man, Muse, the man of twists and turns driven time and again off course, once he had plundered the hallowed heights of Troy. Many cities of men he saw and learned their minds, many pains he suffered, heartsick on the open sea, fighting to save his life and bring his comrades home. Question 4 options: a) This homesick sailor is struggling to save his crewmen and himself. b) The sailor doesnt know how to chart his journey. c) The sailor is given wrong directions from a Muse. d) The sailor is being punished by an outside force. Which of these is a covalent bond in which the electrons are not evenly shared? Security X has expected return of 9% and standard deviation of 18%. Security Y has expected return of 12% and standard deviation of 21%. If the two securities have a correlation coefficient of -0.4, what is their covariance Help me with this question please In the reoxidation of QH2 by purified ubiquinone-cytochrome c reductase (Complex III) from heart muscle, the overall stoichiometry of the reaction requires 2 mol of cytochrome c per mole of QH2 because: 1. A. focus B. open C. chore D. impose2. A. generation B. advice C. typical D. elegant3. A. manners B. conflicts C. objects D. viewpoints4. A. decision B. impose C. arise D. organisation5. A. restricted B. obliged C. respected D. beloved Which sentence correctly uses in appositive phrase? write each equation explicitly in terms of x. then indicate whether the equation is a function. 3xy+x=y-6 Which statement about the ocean is true? No evaporation or precipitation in the water cycle occurs over the ocean. Most evaporation and precipitation in the water cycle occur over the ocean. All evaporation and precipitation in the water cycle occur over the ocean. Evaporation, but not precipitation, in the water cycle occurs over the ocean. Help me everyone, God will bless you ..:) Vegetarianism has become the most popular diet among the young generations facing the new millennium. This discipline eliminates the intake of meat and in some cases also the consumption of dairy products and eggs. Are there enough reasons to make you change your eating habits? My purpose is to prove that vegetarianism is the diet that offers more benefits to our health, spirit, and society.Nowadays, health is the number one individual and governmental concern. Health is a fragile factor and its behavior relies mostly on the nutritional quality of the food we ingest. A balanced non-vegetarian diet allows the consumption of all four main food groups including meat and other animal by-products that are important protein and fat sources. Most of us consume more proteins and fats than we need. An excess of proteins can cause kidney failure and/or osteoporosis, and a high-fat diet can eventually lead to heart disease, cancer, obesity, and diabetes. On the other hand, vegetarians get protein from grains, beans, vegetables, and low-fat food. This is how they reduce the risk of most diseases caused by fats. It is a myth to believe that vegetarians don't get enough proteins or that their diet is not balanced because they don't eat meat. The key isvariety and accurate combinations of energy and protein sources. If I were asked to describe a vegetarian, I would immediately mention they are very disciplined people. It has been proven that there exists a remarkable correlation between the people who succeed and people who follow a disciplined lifestyle. People who are faithful to the disciplines they have acquired show integrity, a remarkable behavior and they are usually in a good mood. Vegetarians, always concerned about quality and discipline, develop a greater social responsibility that motivates them to improve their environment.Moreover, environmental issues have been capturing public attention because of their relevancy and increasing deterioration of our quality of life. If you are concerned about the environment, consider that massive meat production can have a negative impact on tropical rain forests, soil stability, and air and water quality. Large extensions of forests have been cut and changed into grasslands that provide cattle with food. To conserve grasslands, fertilizers and other chemical substances are used; consequently, soil and water resources are polluted. Even though there are methods that avoid this kind of deterioration, producers prefer to ignore them so they can keep satisfying the increasing meat demand without affecting their production rates.Vegetarians' life spans are increased and through this discipline they learn to live quality life in all the possible aspects. Besides, their beliefs are congruent with their lifestyle and they take responsibility and action for problems within their own bodies and in their surroundings. Take a look at yourself. Is your health at risk? Have you been able to reach your goals? Are you a factor of change and improvement within your society? You must at least try becoming a vegetarian now that you know it is a tempting challenge and an exciting experiment that has advantages and no risks. Do it for your body, for your lifestyle, or for your environment, but do it. Stop letting others have all the credit, the fun, and the quality.1. What is the writer's purpose in writing the text above2. What is the most popular diet among the young people these days? 3. What is the main reason for being a vegetarian? 4. What are the consequences of consuming more proteins and fats than one needs? 5. How does the writer falsify the myth saying vegetarians don't get enough proteins or that their diet is not balanced because they don't eat meat? 6. Where do vegetarians get proteins from?7. How does the writer prove his claim that vegetarians are very disciplined people?8. How can massive meat production have a tropical rain forests, soil stability, air and water quality? negative impact on9. How do vegetarians learn to live a quality life in all the possible aspects?10. What is the function of rhetorical questions in the last paragraph? Degrees of comparison Of the following Honest CheapJealous BraveLazyPlease takeQuiet ShayNecessary Bad Good Much pete walks at a rate of 4.0 miles per hour for 30 minutes. How far did he walk? write any one basis of establishing interrelationships between health , population and environment education Plz see attachment below