What is the domain of f(x) = 5x?

A. All real numbers greater than or equal to 5
B. All numbers greater than 5
C. All real numbers
D. All nonnegative real numbers

Answers

Answer 1
C. All real numbers. Since there isn't any restriction on the domain and the fact that this function is a linear function, it will goes to infinity in both directions.

Related Questions

A train freight car weighs 25 tons when empty. A conveyor belt pours coal into the car at a constant rate of 1/3 ton per minute until it is full.

The dump truck (Refer to problem 8) weighs 55 tons when filled. At the same time the freight car is being filled, an identical freight car filled

to capacity is being emptied at a rate of 1/6 ton per minute.

How long, in minutes, until the freight cars are the same weight?

The tucks will weigh the same in

minutes.

How much coal will be in each truck when they weigh the same?

There will be

tons of coal in each truck.

Answers

Step-by-step explanation:

Step one:

mass of Freight car=25tons

the rate of filling is 1/3 ton per minute

let the time taken to fill the freight car be x

and the total mass after x minute be y

Hence the mass as a function of time is expressed as

y=25+1/3x----------1

mas of dump truck=55tons

rate of being emptied= 1/6 tons per minute

let the time taken to empty the dump truck be x

and the total mass after x minute be y

Hence the mass as a function of time is expressed as

y=55-1/6x----------2

Step two:

equating equations 1 and 2,

1. The tucks will weigh the same in

55-1/6x=25+1/3x

collect like terms

55-25=1/3x+1/6x

30=(2+1/6)x

30=3/6x

30=1/2x

30=0.5x

x=30/0.5

x=60min

or

1 hour

The tucks will weigh the same in  60minutes(1 hour)

2. How much coal will be in each truck when they weigh the same?

For the  train freight car, the weight after 60 minutes is

y=25+1/3(60)

y=25+20

y=55tons

55-25=20tons

There will be 20tons

For the  dump truck, the weight after 60 minutes is

y=55-1/6(60)

y=55-10

y=45tons

55-45=10tons

There will be 10tons

It says I have 13 free answers left and then it says I used them all so I only get 2 free. why?

Answers

Answer: That used to happen to me but if you answer peoples questions it doesnt do that anymore because you are helping out

Step-by-step explanation:

Answer:

you have to use ads wich is stupid

Step-by-step explanation:

i need this asap!!!! please! will give brainliest and a thanks to fast answers!

Answers

Answer:

2 big

30 small

Step-by-step explanation:

possibility

Answer: 2 big
30 small

Pls help show work please

Answers

Each bracelet is $5, this can be represented as 5b. (Where b is number of bracelets)

Each necklace is $8, this can be represented as 8n. (Where n is number of necklaces)

We know that the total money raised needs to be at least $100, but it can also be more than that.

So we know that 8n+5b will be greater than or equal too 100.

8n+5b ≥ 100

Dan made $5.38 for a half hour of work. At Dan's current rate of pay, how much would Dan make for 8 hours of work?

Answers

Answer:

The answer is 86.08, hope this helps.

Step-by-step explanation:

Answer:

$86.08

Step-by-step explanation:

If Dan makes $5.38 for HALF an hour how much does he make for a full hour? He makes $10.76 for an entire hour.

$10.76 x 8= $86.08

please solve this problem for me​

Answers

Answer:

11/4800

Step-by-step explanation:

H, 11/4800. hope this helps.

Write the equation of the line, in slope-intercept form, with the
following information:
slope: -2
point: (5,-4)

Answers

Answer:

Step-by-step explanation:

y + 4 = -2(x - 5)

y + 4 = -2x + 10

y = -2x + 6

A pebble is dropped into a deep well and 3s later the sound of a splash is heard as the pebble reaches the bottom of the well. The speed of sound in air is about 340 m/s. How long will it take fir the pebble to hit the water? How long does is take for the sound to reach the observer? What is the depth of the well? (I need the equation)

Answers

Answer:

[tex]2.89\ \text{s}[/tex]

0.11 seconds

[tex]37.4\ \text{m}[/tex]

Step-by-step explanation:

[tex]t_1[/tex] = Time taken by the pebble to hit the water

[tex]t_2[/tex] = Time taken by the sound to travel to the observer

[tex]t_1+t_2[/tex] = Time taken by the observer to listen to the splash after stone is thrown = 3 s

[tex]t_1=3-t_2[/tex]

a = g = Acceleration due to gravity = [tex]9.81\ \text{m/s}^2[/tex]

[tex]u_s[/tex] = Speed of sound = 340 m/s

The distance traveled by the pebble

[tex]s=ut+\dfrac{1}{2}at_1^2\\\Rightarrow s=0+\dfrac{1}{2}\times9.81(3-t_2)^2\\\Rightarrow s=4.905(9+t_2^2-6t_2^2)[/tex]

Distance traveled by the sound

[tex]s=u_st\\\Rightarrow s=340\times t_2[/tex]

The distance traveled by the sound and the pebble is equal

[tex]4.905(9+t_2^2-6t_2)=340\times t_2\\\Rightarrow 9+t_2^2-6t_2=\dfrac{340}{4.905}t_2\\\Rightarrow 9+t_2^2-6t_2=69.32t_2\\\Rightarrow t_2^2-75.32t_2+9=0\\\Rightarrow t_2=\frac{-\left(-75.32\right)\pm \sqrt{\left(-75.32\right)^2-4\times \:1\times \:9}}{2\times \:1}\\\Rightarrow t_2=75.2,0.11[/tex]

Since [tex]t_1+t_2=3[/tex] the value of [tex]t_2[/tex] cannot be greater than 3.

So, time taken by the sound to reach the observer is 0.11 seconds.

Time taken by the pebble to hit the water is [tex]t_1=3-t_2=3-0.11=2.89\ \text{s}[/tex]

Depth of the well is [tex]s=340t_2=340\times 0.11=37.4\ \text{m}[/tex]

please helpp mecwith this question ​

Answers

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[tex] \frac{1}{R} = \frac{1}{8} + \frac{1}{12} \\ [/tex]

[tex] \frac{1}{R} = \frac{1 \times 3}{8 \times 3} + \frac{1 \times 2}{12 \times 2} \\ [/tex]

[tex] \frac{1}{R} = \frac{3}{24} + \frac{2}{24} \\ [/tex]

[tex] \frac{1}{R} = \frac{3 + 2}{24} \\ [/tex]

[tex] \frac{1}{R} = \frac{5}{24} \\ [/tex]

Inverse both sides

[tex] \frac{R}{1} = \frac{24}{5} \\ [/tex]

[tex]R = \frac{24 \times 2}{5 \times 2} \\ [/tex]

[tex]R = \frac{48}{10} \\ [/tex]

[tex]R = 4.8 \: \: Ω[/tex]

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The correct answer is (( B )) .

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Lucia invests $5000 at a rate of 4.5% per year compound interest. Calculate the value of her investment at the end of 7 years.​

Answers

The value of her investment at the end of 7 years is $11804

How to determine the value?

The given parameters are

Principal, P = $5000

Rate, r = 4.5%

Time, t = 7 years

The value is then calculated as:

Value = P * P(1 + r)^t

So, we have:

Value = 5000 + 5000 * (1 + 4.5%)^7

Evaluate the expression

Value = 11804

Hence, the value of her investment at the end of 7 years is $11804

Read more about compound interest at:

https://brainly.com/question/24924853

#SPJ1

what is any of these questions dont worry bout the others

Answers

Answer:

All that u hav to do is 2 apply BODMAS rule. And it will be done. thanq

Step-by-step explanation:

Find the value of x in the triangle below.

x = ?

Answers

Answer:

x=8

Step-by-step explanation:

hope i helped!!!

Answer:

61°

Step-by-step explanation:

180-58=122

122÷2=61

the functions f(x), g(x), and h(x), find the average rate of change over the interval -3≤x≤5

Answers

The average is you can search for it online. X

HEEEEEEEEEEEEEEELLLLLLLPPPPP PLEASE

Answers

Answer:

3  1/5

Step-by-step explanation:

I used my calculator, but convert to the greatest common factor which is 15 and multiply, then simplify to 16/5 and turn to a proper fraction 3 1/5.

Answer:

=  16/5  =  3  1/5

Step-by-step explanation:

PLEASE HELP!! REALLY URGENT!!

Answers

Answer:

it's the first option

Step-by-step explanation:

A...………….......... k

What is the equation of this graphed line?
Enter your answer in slope-intercept form.


Please answer quickly, I will give brainliest to whoever answers correctly, thank you.

Answers

Answer:

y = -9/8x + 7

Step-by-step explanation:

Slope-intercept form is:

y = mx + b

Points given:

(0, 7) and (8, -2)

y-intercept is

b = 7 as per the first point

And the slope is:

m = (-2 - 7)/(8 - 0) = -9/8

So the line is:

y = -9/8x + 7

Answer:

Required Answer:-

points are

(0,7)(8,-2)

slope =m

[tex]{:}\longrightarrow[/tex][tex]\sf m={\dfrac {y_2-y_1}{x_2-x_1}}[/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf {\dfrax {-2-7}{8-0}}[/tex]

[tex]{:}\longrightarrow[/tex][tex]\sf {\dfrac {-9}{8}}[/tex]

y intercept:-

7

Hence the equation is

[tex]{:}\longrightarrow[/tex][tex]\sf y={\dfrac {-9}{8}}+7 [/tex]

You bought a magazine for $6 and 4 candy bars. If you spent a total of $14, how much did each candy bar cost?

Answers

Answer:

2$

Step-by-step explanation:

first you need to subtract the cost of the magazine from the total. now you have 8$ left, divide this by the number of candy bars, 4, and you get 2$.

don't forget to add the dollar sign, it might save you points

Which expression has a value of 8?
1. 720 divided by 9
2. 720 divided by 90
3. 7200 divided by 9
4. 7200 divided by 90

Answers

Answer:

720 divided by 90

Step-by-step explanation:

72 divided by 9 is 8. 720 divided by 9 is 80 because you're keeping the 0, but when dividing, take away the zeros if both numbers have a zero to make it easier

How long can you hold your breath? A statistical question or nonstatistical question

Answers

Answer:

nonstatistical

Step-by-step explanation:

Have a great day and hope this helps

Answer:

statistical

Step-by-step explanation:

i did it

27 : 18 = 13 : x find x​

Answers

Answer:  27:18 and 13:x can also be written as 27/18 and 13/x

therefore, 27:18 = 13:x

                 27/18 = 13/x

                 27/18 *13= x

               x = 19.5

Hope it helped u,

pls mark as the brainliest

and put thanks

^_^

Write as a product:
a2+b2–2ab –25

Answers

Answer:  -a2 - 2ab - b2 + 25  =

 -1 • (a2 + 2ab + b2 - 25)

Final result :

 -a2 - 2ab - b2 + 25

Step-by-step explanation:

solve for x : 4 (1 - x) + 2x = -3 (x+1)

Answers

Answer: x=-7

Step-by-step explanation:

Translation of, “Six less than twice the value of x,”.

Answers

Answer:

2x-6

Step-by-step explanation:

Please answer these series of questions! I will give high points and brainliest!

A. Reduce 3/51 to its simplest terms

B. Solve 7 divided by 3 (in fractions!)

C. 19 divided by 3 (fractions)

D. Reduce 50/80 to simplest terms

E. Reduce 9/14 to simplest terms

F. Reduce 36/54 to simplest terms

G. Solve 55 divided by 12 (fractions)

H. Reduce 9/153 to simplest terms

That’s all! ( please answer correct my life is depending on it, my mom will literally beat me up )

Answers

Answer:

A: 1/17 or decimal form: 0.058

B: 7/3 or mixed #: 2 1/3

C: 19/3 or mixed #:  6 1/3

D: 5/8

E: 9/14

F:2/3

G: 55/12 or mixed #: 4 7/12

H: 1/17

Step-by-step explanation:

I have 1373/1000 Points, and 10/10 brainiest. Why am I not leveling up to Expert?

Answers

Answer:

some thing is broken man

Step-by-step explanation:

In 2003, the average attendance per game for a football team was about (1 × 104) + (9 × 103) + (9 × 102). What is this number in standard form?

show work

Answers

Answer:

1.99 * 10^4

Step-by-step explanation:

Here, we want to write the addition in standard form

= (1 * 10^4) + (9 * 10^3) + (9 * 10^2)

= 10,000 + 9000 + 900

= 19,900

so the number in standard form is;

1.99 * 10^4

2 × x × x × 3 × y × y × y
how do i do this?

Answers

Answer:  [tex]6x^2y^3[/tex]

Explanation:

The numbers 2 and 3 multiply to 6, so that's why the final coefficient is 6.

The x terms multiply to [tex]x*x = x^2[/tex]

The y terms multiply to [tex]y*y*y = y^3[/tex]

The exponent tells us how many copies of the base to multiply.

So overall, [tex]2*x*x*3*y*y*y = 6x^2y^3[/tex]

Simplify this algebraic expression completely.

7x - 5(x+6)

Answers

Answer:

2x - 30

Step-by-step explanation:

7x - 5(x+6)

7x - 5x - 30

2x - 30

done, hope i helped you and be sure to support me by marking me brainly and thank, and also make a 5.0 vote

HELPPPP plzz!!

A.) Side - Side - Side
B.) Side - Angle - Side
C.) Angle - Side - Angle
D.) Angle - Angle - Side
E.) Hypotenuse - Leg

Answers

Oh wait I think I know the answer, c.

Answer:

C

Step-by-step explanation:

angle DAB = angle CBA

angle DBA = angle CAB

line AB = line AB

Since we know that the two angles and 1 side are the same on both triangle ADB and BCA, the property is angle side angle

Solve for x.
*2 =
= 1
A)
-10
22
B)
C)
D
4.

Answers

Answer:

1+x=b;b+x=c;c+x=d;d+x=89

Step-by-step explanation:

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I will give brainliest to the correct answers. 1The main purpose of the Declaration of Independence was to-*(1 Point)explain the advantages of republican governmentpersuade the British king to change his policiesestablish a new central government in the coloniesannounce the colonists' reasons for separating from Great Britain Pick two of the gods or goddesses of Greek mythology described in the Article. Tell how they are the same and different. Also, explain why you chose them. Use facts and details from the Article in your answer.The article: Before there was a world, there was only Chaos, the goddess of nothingness. Then, other immortals surfaced. One is Gaia, the goddess of Earth. Others include Thanatos, the god of death, and Eros, the god of love.From these deities came powerful forces: night and day, fate and doom. They, in turn, created fierce beings. There were giants called Titans and one-eyed monsters called Cyclopes. There were also creatures with 100 hands and 50 heads. These were called Hecatoncheires.The gods often battled each other. In the end, 12 gods and goddesses remained. They ruled the universe from a mountain in the sky.Does this sound like the latest sci-fi adventure? It isn't. These characters from Greek mythology are thousands of years old.Ancient people once built great temples to win the favor of these gods and goddesses. More recently, household items, illnesses, and trips to outer space bear their names. And so, the characters demand attention.Zeus and HeraThere's the mythological deity of Zeus, the king of the gods. He rides a horse with wings and throws thunderbolts when he's angry. He's the lord of justice, yet he can be terribly unfair. In fact, he's a god of many contradictions. He's kind yet cruel. He's playful yet stern. He's a leader yet small-minded. Zeus often pretends to be an animal and drops in on the human world, where he's got a few girlfriends.According to the myths, this angers Zeus's wife Hera. 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In the gods and goddesses, we see parts of ourselvesthe good and the bad.