What are the domain and range of f(x) = 21?

The domain and the range of a function, are the set of values the function can take as input and output.

The domain and the range of [tex]\mathbf{f(x) = 21}[/tex] are:[tex]\mathbf{(-\infty,\infty)}[/tex] and 21, respectively.

The function is given as:

[tex]\mathbf{f(x) = 21}[/tex]

There is no restriction as to the value of x.

So, the domain is:

[tex]\mathbf{Domain = (-\infty,\infty)}[/tex]

Irrespective of what the value of x is, the value of y will remain 21.

So, the range is;

[tex]\mathbf{Range = 21}[/tex]

Hence, the domain and the range of [tex]\mathbf{f(x) = 21}[/tex] are:[tex]\mathbf{(-\infty,\infty)}[/tex] and 21, respectively.

Read more about domain and range at:

https://brainly.com/question/21853810

answer this question please :)

Which equation has the solution x = 5?


Select EACH correct answer.


25x+4=9

3x + 1 = 9

x5+5=6

18−2x=9

11 + 6x = 22

32−4x=12

PLEASE SOLVEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!

Please help. and put a explanation because I need it lol (if you can )

David moved from a house that is 89 miles away from his workplace to a house that is 51 miles away from his workplace. What is the percent decrease in the distance from his home to his workplace? (round answer to the nearest whole number

Henry divided his socks into five groups. Let s represent the total number of socks. Which expression and solution represent the number of socks in each group if s=20?

A. S/5; when s=20, the number of socks in each group is 4.

B. S/5; when s=20, the number of socks in each group is 15.

C. S-5; when s=20, the number of socks in each group is 4.

D. s-5; when s=20, the number of socks in each group is 15.

If m = -4 and n = 7, what is the value of m - n?

11
-3
-11
3

Bobby Joe made a mistake on his assignment on Combining Like Terms. Can you help Bobby Joe? For full points on this question:

Tell me what he did RIGHT!

Tell me the mistake that Bobby Joe made

Tell me the correct way to combine like terms in this expression

6x + 5x + 2y
11x + 2y
13xy

answer the following: 5 x (2)³

GUYS HELP I WILL GIVE BRAINLYIST
;)

what is the distance between X(-3,4) and Y(2,1)
A. 2.8
B. 5.8
C. 4.0
D. 3.2
I think it's B but I need to know if it's right.

The table shows the approximate height of a football after it is kicked. Tell whether the rates of change for successive time intervals are constant or variable

Out of every 8 loaves of bread that Markelle bakes, 5 of them are pumpkin bread.

At this rate, how many loaves of pumpkin bread would he have if he baked a total of 40 loaves of bread?

Need helpp fastt plss will give brainliest to who is correct plss helpp

I NEED HELP THIS IS DUE IN AN HOUR!!!!!

Please help this is due tmr, Don't answer the question if you have no answer or ideas. Im not trying to be rude but I really just need help. :(

Think about how you can use absolute value notation to express the distance between two points on a coordinate graph. For each pair of points below, find the distance between the given points and express your work using absolute value symbols. Explain or Show your work.


1. (4, 9) and ( –5, 9)

2. (7, –1) and (7, –4)

3. (0, 9) and (0, –7)

4. (4, –8) and (–10, –8)

Helpp A car used 1/64 of a gallon of gas to drive 1/4 of a mile. At this rate, how many miles can the car travel using 1 gallon of gas?

Help please tysvmmm !!!!!11

Rodrick and Valentina drove to the coast. Rodrick drove 38 9−− 10miles. Then Valentina drove the last 51 3− 5miles. How far did they drive to the coast?

Auto Tech charged Mrs. Smith $90.00 for an automotive part plus $53.00 per hour
that a mechanic worked to install the part. The total charge was $328.50. For about how
long did the mechanic work to install the part on Mrs. Smith’s car?

A watering can dispenses water at the rate of 0.20 gallon per minute. The original volume of water in the can was 8 gallons. Which set of ordered pairs shows the volume of water in the can in gallons (y), as a function of time in minutes (x), from the first minute after can starts dispensing water? (1 point)


{(7.8, 1), (7.6, 2), (7.4, 3)}

{(1, 7.8), (2, 7.6), (3, 7.4)}

{(8.0, 1), (7.8, 2), (7.6, 3)}

{(1, 8.0), (2, 7.8), (3, 7.6)}

$7.50 meal; 6.5% tax _____

please help! its math and im so confused!

3. Damien paints 1/5 of a room in 5/12 hours what unit rate describes this situation

Look at the chart and answer the question. Which country has about four times as much helium as Canada?

please help i don't understand. will mark brainliest. answer both questions

(PLEASE ANSWER)
You have 2 different savings accounts. For Account​ A, the simple interest earned after 3 months is $0.90. For Account​ B, the simple interest earned after 18 months is $22.50. If the interest rate is 3.6%for Account A and 2.5% for Account​ B, how much is the principal in each​ account? Which account earned you the most interest the first​ month? Explain your answer.

Account A has a principal of ​$BLANK. (Round to the nearest dollar as​ needed.)

Mrs. Green purchased 3 4/5 pounds of pecans. What is the decimal value equivalent to the pounds of pecans purchased.

I will give brainliest if you get it right and 1st please answer this question?!

Find the value of x in each pair of similar figures. Use proportions to solve.