What is the volume of a cylinder with base radius 2
and height 9?

Answers

Answer 1

Answer:

18

Step-by-step explanation:

volume= r × h = 2 × 9= 18

Answer 2

Answer:

The volume is 144[tex]\pi[/tex].

Step-by-step explanation:

In order to calculate the volume of a cylinder, you have to find the area of it's base. Because a cylinder's base is a circle, you use the formula A=[tex]\pi r{2}[/tex]. Substituting in the radius's length would be A=[tex]\pi (4){2}[/tex], which is A=16[tex]\pi[/tex]. Now that we know the base area of the cylinder, we multiply it by the height, which is 9 to calculate the volume. Therefore, the volume of the cylinder would be 9×16[tex]\pi[/tex], which is 144[tex]\pi[/tex].


Related Questions

Answer this to be called the smartest...... What has 4 lags in the morning, 2 in the afternoon, and 3 at night..?

Answers

Answer:

A person

Step-by-step explanation:

I have heard this riddle multiple times, it is very well known and ( in my opinion ) very intriguing;

If we are considering the 4 legs in the morning, we can assume it to be a baby crawling on all 4's. 2 legs in the afternoon represents a more elderly person, a young child or adult on their 2 legs, and 3 in the night models an elderly person, using a walking stick as their " leg "

Answer; In other words, a person has 4 legs in the morning, 2 in the afternoon, and 3 at night

A human is one who has  4 legs in the morning, 2 in the afternoon, and 3 at night.

What is a riddle?

A statement, inquiry, or phrase with a hidden or double sense that is presented as a problem to be answered is called a riddle. A riddle often consists of a topic or a statement with numerous interpretations that must be resolved. Riddles can be humorous brain teasers or wanted-to-think puzzles. It is similar to working to remedy a riddle.

Morning represents a baby. A baby crawling in the morning has four legs and hands included.

An adult represent afternoon walks with two legs and they are the one who have to sand on their own.

An elderly person representing night who walks with the aid of a cane or walking stick is known as "3 legs in the evening." as they might have trouble while walking.

Learn more about riddle, Here:

https://brainly.com/question/478260

#SPJ2

X+2=5-1/2 X

what is x?

Answers

Answer:

Step-by-step explanation:

[tex]X + 2= 5-\frac{1}{2}X\\\\[/tex]

Add (1/2)x to both the sides

[tex]X+2+\frac{1}{2}X=5-\frac{1}{2}X+\frac{1}{2}X\\\\x+\frac{1}{2}X+2=5\\\\[/tex]

Subtract 2 from both the sides

[tex]X+\frac{1}{2}X+2-2=5-2\\\\X+\frac{1}{2}X=3\\\\\frac{3}{2}X=3\\\\X=3*\frac{2}{3}\\\\X=1*2\\[/tex]

X= 2

If f(x) = 22 + 2x – 10, what is f(-2)?
-16
-10

Answers

Answer:

idkfin4infiotnoitrnin

Step-by-step explanation:

bye

The result for the survey of 120 students who were selected randomly is listed below. The total population of students was 380. 66 students ride the yellow bus 24 students ride the city bus 30 students do not ride a bus . Based on the data, what is the best approximate for the total number Of students who ride the city bus?

Answers

Answer: 76 students

Step-by-step explanation:

Number of students surveyed = 120

Students who 66 ride yellow bus= 66

Students ride city bus = 24

Students who do not ride a bus = 30.

The fraction of students who ride the city bus will be:

= 24/120

= 1/5

Since the total population of the students is 380, the qpproximate for the total number of students that ride the city bus will be:

= 1/5 × 380

= 76 students

need help asap :) they said the text was too short so don't mind this

Answers

Answer:

try 63

Step-by-step explanation:

14×9=126

126÷2=63

Answer: area of 63

Step-by-step explanation: the formula is Area = height * base/2

so now substitute Area = 9 * 14/ 2

multiply... Area = 126/ 2

then divide to get 63

hope this helps mark me brainliest if it did

what’s the answer for this question

Answers

A=l*w
A=5*5
=25 square feet
The answer is 20 because all sides of a square are equal.

WHAT IS 666x666 help me

Answers

Answer:

666 x 666 = 443,556

Answer:

443556

Step-by-step explanation:

666 * 666 = 443556

666

x666

-------

443556

Coach Walker wants to buy equal numbers of footballs and basketballs for her PE class. The footballs cost $9 each, and the basketballs cost $7 each. Coach Walker has $208 for the purchase. How many of each type of ball can she buy?

Answers

Answer:

13 footballs and 13 basketballs

Step-by-step explanation:

Let f = footballs

b = basketballs

f=b since we are buying an equal number

9f+7b = 208

Substitute f=b

9f+7f = 208

16f = 208

Divide by 16

16f/16 = 208/16

f=13

We are buying 13 footballs

Since f=b

We are buying 13 basketballs

Need help! Up to 100 points
Link or something. It's has been a nightmare with these questions...

Answers

Answer:

Part B

Part 1 describes a quartic function that's been reflected over the x-axis and translated up and to the right. (It's quartic because it has those bumps; it's like a quadratic in that its end behavior is down-down, but it has more bumps than a quadratic.)Part 2 describes an exponential decay function that approaches a horizontal asymptote. (This one looks just like Part 3 in the previous graph.)

Part C

You're going to have to do this scatter plot on your own with the given software, because I don't know how your software works, but I can tell you that #1 will look like a quadratic, #2 a cubic, #3 a quartic, #4 a really fun third root that looks like a cubic on the y-axis instead of the x-axis.

Part D

You can look on Worldometer for graphs of the coronavirus; they have graphs in every individual country. I advise using the total cases on a logarithmic scale, because the question specified that it can't be linear.

Mr. Bryan's class has 60 students. 1 of the students stay for tutoring on Monday. If Mr. Bryan equally divides the students that stay
4
for tutoring into 5 groups, how many students are in each group?

Answers

Answer:

12 per group

Step-by-step explanation:

You divide the amount of students by the amount of groups.

60/5 = 12

EMERGENCY!!!!
What is the volume of the following rectangular prism?

Answers

Answer:

6 3/4

Step-by-step explanation:

3 3/8 * 2 = 6 3/4

Consider the quadratic function f(x)= 2(x + 4)² − 6. What is the line of symmetry?

Answers

Answer:

see attachement

Step-by-step explanation:

y13 = 817
Round to the nearest tenth

Answers

817/13 = 62.8

answer: 62.8

Factor completely −5x3 + 10x2

Answers

Answer:

(2 - x)5x²

Step-by-step explanation:

-5x³ + 10x² = 10x² - 5x³   (Commutative property of addition)

                  = 2×(5x²) - x×(5x²)  

                  = 5x² × (2 - x)   (Factor out 5x²)

Answer:

−5x2(x − 2)

Step-by-step explanation:

I took the test

x – 4x < 5x + 16 solve for x

Answers

Answer:

x>-2

Step-by-step explanation:

x-4x<5x+16

Subtract 5x from both sides:

x-4x-5x<16

Combine like terms:

-8x<16

Divide both sides by 8:

-x<2

Divide both sides by -1:

x>-2

Hope this helps!

I need the answerrrrr

Answers

Answer:

28unit³

Step-by-step explanation:

given,

1 side has 21/2 unit square area

the side happens to be l×b

h is given as 8/3

the volume formulae is l×b×h

substituding in formulae

21/2×8/3

=28 unit³

this is correct

plzz mark me brainliest

The correct answer is 28 ft^3.

I hope this helps you!!!

Saad purchases 75 books and 75 dictionary .If a book costs Rs 476 and a dictionary costs Rs 128. Find the total money spent on books and dictionaries. *

Answers

Answer:

75.9

Step-by-step explanation:

What is the volume of this solid?

A triangular prism. The triangular base has a base of 10 inches and height of 7 inches. The height of the prism is 8 inches.

Recall the formula V = Bh.
280 cubic inches
385 cubic inches
465 cubic inches
560 cubic inches

Answers

Answer:

the answer: 280ci

Step-by-step explanation:

:] [:

Answer:

280

Step-by-step explanation:

Describe what math step you would do to solve this equation ?

Answers

Answer:

Multiply each side by 14.7

Step-by-step explanation:

cos 50 = m / 14.7

Multiply each side by 14.7

14.7 cos 50 = m /14.7 *14.7

 14.7cos 50 = m

Answer:

multiply both sides by 14.7

Step-by-step explanation:

can someone please help me :)

Answers

Answer:

B

Step-by-step explanation:

54 out of 72 is what percent

Answers

Answer:

the answer is 75 percent

Un faro enciende cada 12 segundos, otro cada 18 segundos y un tercero cada minuto. A las 7:30pm los tres coinciden. Averigua a qué hora vuelven a coincidir los 3. (Siga el formato de hora correcto. Por ejemplo: 7:30pm. Sin espacios)

Answers

Answer:

7:33 p.m.

Step-by-step explanation:

Para resolver este problema, necesitamos encontrar el mínimo común múltiplo de los intervalos en los cuales se encienden los faros. Para eso necesitamos primero convertir el tiempo que tarda el tercer faro en segundos. Sabemos que cada minuto tiene 60 segundos en total, así que el tercer faro se encenderá cada 60 segundos.

Luego de tener todos los tiempos en segundos, procedemos a escribirlos en una tabla como la siguiente:

12   18   60

La idea es buscar los números primos que todos tengan en común y dividirlos todos entre dichos números primos hasta que ya no podamos dividirlos más, por ejemplo, estos números se pueden dividir todos dentro de 2 así que hacemos eso:

12  18   60  |  2

6   9    30  |  2   dos de estos números nuevos pueden ser dividos entre dos también, así que hacemos justo eso.

12  18   60  |  2

6   9    30  |  2

3   9    15   | 3   ahora todos pueden ser divididos entre 3, así que obtenemos:

12  18   60  |  2

6   9    30  |  2

3   9    15   | 3

1    3     5   |  3    uno de estos números se puede dividir entre 3 y obtenemos.

12  18   60  |  2

6   9    30  |  2

3   9    15   | 3

1    3     5   |  3

1    1      5   |  5  y finalmente dividimos entre 5 para obtener:

12  18   60  |  2

6   9    30  |  2

3   9    15   | 3

1    3     5   |  3

1    1       5   |  5

1    1       1    

luego que terminamos la tabla tomamos todos los números que usamos para dividir y los multiplicamos entre si para obtener:

2*2*3*3*5=180s

los tres focos se volverán a prender luego de 180s. Si pasamos los 180s a minutos, tenemos que:

[tex]\frac{180}{60}=3min[/tex]

entonces lo único que tenemos que hacer es sumarle esos 3 minutos a la hora que nos dieron originalmente para obtener:

7:30 + 3 min = 7:33pm

la cual es nuestra respuesta.

Show that (2.1) is a solution of the system of equations.
Substitute (2, 1) into x + 3y = 5 to get -
Simplify the equation to get -
Substitute (2, 1) into y = -x+ 3 to get -
Simplify the equation to get -

Answers

Answer:

Substitute (2, 1) into x + 3y = 5 to get  2 + 3(1) = 5

Simplify the equation to get 5 = 5 is true

Substitute (2, 1) into y = –x + 3 to get 1 = -(2) + 3

Simplify the equation to get 1 = 1 is true

Step-by-step explanation: well i am doing it right now and i got it right

what is the solution for 1/2x + 8 < 10

Answers

1/2x+8<10

      -8  -8

1/2x<2

*2    *2

x<4

Answer:

x<4

Answer:

x < 4

Step-by-step explanation:

Given inequation,

→ 1/2x + 8 < 10

Now the value of x will be,

→ 1/2x + 8 < 10

→ 1/2x < 10 - 8

→ x < 2 × 2

→ [ x < 4 ]

Hence, the value of x is 4.

Eliana is reading a 964-page book.She reads 20 pages per day in the book. If x represents the number of days Eliana has spent reading the book so far, which of the following equations can be used to find the number of pages remaining in the book for Elaina to read. A-y=20x+964 B-y=-20+964 C-y=964+20 D-y=-964+20

Answers

Answer:

the answer is a

Step-by-step explanation:

please help will vote brainliest

Answers

Answer:

D

Step-by-step explanation:

Start by factoring out each radical.

[tex]\sqrt{16x^{3}} = \sqrt{16}*\sqrt{x^{3}} = 4\sqrt{x^{3}}[/tex]

[tex]\sqrt{8x} = \sqrt{4} * \sqrt{2x} = 2\sqrt{2x}[/tex]

Add them to get:

[tex]\frac{4\sqrt{x^{3}}}{2\sqrt{2x}} = \frac{4\sqrt{x}\sqrt{x}\sqrt{x}}{2\sqrt{2}\sqrt{x}} = \frac{4\sqrt{x}\sqrt{x}}{2\sqrt{2}} = \frac{2x^{2}}{\sqrt{2}} = \sqrt{2} x^{2}[/tex]

D is the answer

“Won’t you please please help me”

Answers

Answer: Angle BGA

Step-by-step explanation:

When added together they make 180 degrees.

In an elementary school, 25% of the 252 students ride a bus to school each day. How many students ride the bus?

Answers

Answer:

63

Step-by-step explanation:

A mans taxable income is $15 200. He pays tax at the rate of 25% . The amount of income tax he pays is.

Please answer quickly and honest. You have 10 Seconds to complete.

Answers

Answer:

3800

Step-by-step explanation:

15200 times 0.25 is 3800

In a capture-recapture study, 97 grizzly bears were tagged and released back into the wild. A month later, 200 bears were captured of which 36 were tagged. About how many grizzly bears are in the population?

Answers

Answer:

539

Step-by-step explanation:

Let the total population of  grizzly bears=x

In the first capture, 97 were tagged.

Therefore, ratio of the total population to the tagged=x:97

A month later, when 200 bears were captured, 36 were tagged.

Ratio of the sample to the tagged=200:36

Since a sample is representative of the population, the ratios are the same. We therefore have:

x:97=200:36

[tex]\dfrac{x}{97} =\dfrac{200}{36}\\ $Cross multiply\\36x=200 X 97\\x=200 X 97 \div 36\\x=538.9 \approx 539[/tex]

There are about 539 grizzly bears in the population

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