The formula for finding the volume of a cone is V=
nur?n. The radius of a cone is 5 cm and the height of a cone is 10
cm. What is the approximate volume of the cone?

Answers

Answer 1

Answer:

261.8 cm^3

Step-by-step explanation:

1) find the base area

base area = radius^2 x pi = 5^2 x pi = 25 x pi = 78,539816 cm^2

2) find the volume

V = (base area x height)/3 = (78.539816 x 10)/3 = 785.3/3 = 261.8 cm^3


Related Questions

Ryan's take-home pay is $2,500 each month. The amount for gas is $125. Calculate the percentage Ryan uses on gas from his take-home pay. please help!! O^O

Answers

Answer: 5%

Step-by-step explanation:

Since Ryan's take-home pay is $2,500 each month and the amount for gas is $125.

The percentage that Ryan uses on gas from his take-home pay will be:

= Amount used on gas / Take home pay × 100

= 125/2500 × 100

= 1/20 × 100

= 5%

He used 5% on gas.

What is the next term of the geometric sequence 5, 20,80

Answers

Answer:

a₄ = 320

Step-by-step explanation:

To obtain a term in a geometric sequence , multiply the previous term by the common ratio r

r = [tex]\frac{a_{2} }{a_{1} }[/tex] = [tex]\frac{20}{5}[/tex] = 4 , then

a₄ = 4 × a₃ = 4 × 80 = 320

Solve for x
19/10 = x/12

Answers

Answer:

x=19

Step-by-step explanation:

19/12=x/12

19*12=x*12

228=12x

228/12=x

19=x

a town had 2120 acres of pine trees a few years ago. only 15% of the acres of trees are left. how many acres of pine trees remain?

Answers

Answer:

318

Step-by-step explanation:

just to 2120 x .15

Write the number 560 in scientific notation.

Answers

Answer:

5.6 x 10 2

Step-by-step explanation:

Answer:

5.6 × [tex]10^{2}[/tex]  - scientific notation

hope this answer helps you.....

Check out this rectangular prism

Find the surface area of the rectangular prism (above) using its net (below).

Answers

Answer:

52

Step-by-step explanation:

Used hint.

Answer:

52

Step-by-step explanation:

if you are on khan or on something else it is 52

Here is some more
Find the value of x: 3x−7=8x+23

Answers

Answer: x=6

Step-by-step explanation:

Answer:

x = -6

Step-by-step explanation:

Subtract 3x from both sides to get -7=5x+23.

Subtract 23 from both sides to get -30=5x.

Divide 5 from both sides.

x = -6.

Help me somebody please

Answers

It’s not clear try posting a better pic !

2. A square had a side length of 5x units. A triangle has side lengths of 5x, (4x+14), and (5x+4) units, For what value of x, will the square and triangle have the same perimeter?
A 2
B 4
C 5
D 3​

Answers

Answer:

Step-by-step explanation:

for the square, it's got 4 sides so

4(5x)  = 5x + 4x+14 +5x + 4

20x = 14x +18

6x = 18

x = 3

answer D looks good

In one hour a seamstress can sew 48 yards of material. How many yards can she sew in 15 minutes?

Answers

Answer:

12

Step-by-step explanation:

you know there are 4 - 15 minutes parts in 1 hour. so if she can sew 48 yards in 1 hour, divide  48 by 4 =12 yards

Please help! I will give you 'Brainliest' if you do!

Answers

Answer:

C   $126,720

Step-by-step explanation:

First hour: 1280 tickets

Second hour: 20% more than 1280 tickets

20% of 1280 = 0.2 * 1280 = 256

1280 + 256 = 1536

Second hour: 1536 tickets

First & second hour tickets:

1280 + 1536 = 2816

Total sales:

2816 * $45 = $126,720

Answer: C   $126,720

If 35% of a number is 84 and 60% of the same number is 144, find 25% of that number.

Answers

Answer:

60

Step-by-step explanation:

find the slope of the line that passes through the given points (9, -3) and (9, 4)

Answers

Answer: No slope.

Step-by-step explanation:

No slope, the x values are the same yet they have different Y values so there isn't a slope and this isn't a function.

Which decimal is the equivalent of 6/11

Answers

Answer:

0.54

Step-by-step explanation:

Similar Triangles? (yes or no)
by which criteria? (AA- SAS-, SSS- or not enough info)

Answers

Answer:

Yes but not in size and not enough info

Step-by-step explanation:

Hope it helps

Please brainliest

What is the greatest common factor of 12a and 9a2?

9
36
3a
12a2

Answers

Answer:

3a

Step-by-step explanation:

the common factors are what make up the terms. 12a is divisible by 3a

9a^2 is divisible by 3a

12a/3a = 4

9a^2/3a

(9a × 9a) / 3a = (9a × 3)

The greatest factor of both 12a and 9a² is; C: 3a

What is the Greatest Common Factor?

We want to find the greatest common factor of 12a and 9a². Now, let us first list the factors of both expressions;

Factors of  12a are; a, 1, 2, 3, 4, 6, 12, 1a, 2a, 3a, 4a, 6a, 12a

Factors of  9a² are; 1, 3, 9, 1a, 3a, 9a

The greatest factor that is common to both 12a and 9a² is 3a

Read more about Greatest common factor at; https://brainly.com/question/219464

PLEASE HELP
Video Game Weather


In a video game, the chance of rain each day is always 30%. At the beginning of each day in the
video game, the computer generates a random integer between 1 and 50. Explain how you could
use this number to simulate the weather in the video game.
I

Answers

Answer:

35

Step-by-step explanation:

A cube has a surface area of 216 cm square 2.What is the length of each side of the cube?Label it below

Answers

Answer:

6 cm

Step-by-step explanation:

the cube has six faces, so each is 216/6 = 36 cm^2

so the side is [tex]\sqrt{36}[/tex]

Oliver found a list of the number of roller coasters at each amusement park in the state. ​11, 17, 28, 17, 40, 44, 19, 45, 49, 31 What is the median?

Answers

the median to your question is 29.5

Answer:

29.5

Step-by-step explanation:

Order from least to greatest

11, 17, 17, 19, 28, 31, 40, 44, 45, 49

Then find the middle number which is 28 and 31 so add the two numbers

28 + 31 = 59

then

59 divided by 2 = 29.5

Maggie is buying party favors for her birthday party. She has $5.00 to spend. She can buy pencils for $0.50 each, rubber balls for $1.00 each, and yo-yos for $1.50 each. How many different combinations of these party favors can she buy with $5.00?

25pt

Answers

Maggie can buy 10 pencils, 5 rubber balls, and 3 yo-yos.

You just divide 5.00 but the price of each item to see how much you can buy without spending too much.

Find the missing side lengths.

Can someone please help???

Answers

Answer:

x = sqrt (2), y = sqrt (2)

Step-by-step explanation:

Here is how we can approach this problem in a step by step solution:

Look at what we are given - we know that the triangle is a right triangle (has a square on one of its angles representing 90 degrees), and the hypotenuse (the side opposite 90 degree angle) is 2 units long, and one of the other angles is 45 degreesUsing this information about angle measurements, we can solve for the third angle using the sum of angles in a triangle equals 180 degrees theorem: 180 - 90 - 45 = 45. After solving, we get that the final angle is 45 degreesNow, we know that the angles of the triangle are 90, 45, and 45 degrees. Using the base angle theorem, we know that his triangle must be an isocoles right triangleThat means that both legs of the triangle must be congruent (x = y)Finally, we can use the Pythagorean theorem because this is a right triangle to solve for the missing sides 4 = x^2 + y^2, 4 = 2 + 2, x = sqrt (2) y = sqrt (2)

*Also, if you knew that a 45-45-90 triangle's sides form a ratio of a, a, and sqrt (2) a, you could also use that and substitute in the values to solve. Both ways work! Hope this helps!!

!!!! HELP PLEASE !!!!!

Answers

Answer:

C)  x² + 2x - 6

Step-by-step explanation:

add 2x +1 to x² - 7

HOW DO I DO MATH..IM NOT EVEN SMART ENOUGH TO KNOW WHAT 4x6 IS

Answers

Answer:

4*6 is 24

its like 6 circles with 4 dots inside and you just count all the dots or it could be the other way around.

Select the three equations that have the same solution.
A. y + 3 = 4
B. y/1.75 =4
C. 5y = 35
D. 22 + y = 29

Answers

Answer:

B,C,D

Step-by-step explanation:

B= solve your equation step-by-step.

y

1.75

=4

Step 1: Multiply both sides by 1.75.

y

1.75

=4

(

y

1.75

)*(1.75)=(4)*(1.75)

y=7

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

C=  solve your equation step-by-step.

5y=35

Step 1: Divide both sides by 5.

[tex]\frac{5y}{5}[/tex] = [tex]\frac{35}{5}[/tex]

Thus y=7

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

D= solve your equation step-by-step.

22+y=29

Step 1: Simplify both sides of the equation.

y+22=29

Step 2: Subtract 22 from both sides.

y+22−22=29−22

y=7

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

Jessica is purchasing new photo frame for a photo. What measurement does Jessica need to know about the photo before she starts?

Answers

she needs to know the length and width of the picture

HELP ME ASAP!!!!!!!!!

Answers

Hello, please do not cheat on classwork on brainly, as this is against the honor code. Please do not continue this activity.

what is .15 repeating as a fraction in simplest form

Answers

Answer:

15 = 533 as the lowest possible fraction. The repeating decimal 0.

Step-by-step explanation:

0.15=533 in the simplest form

what is the answer for 3.4x - 2y when x=1 and y=-2

Answers

Answer:

Step-by-step explanation:

3.4x - 2y

Putting values of x and y in the equation

3.4(1) - 2(-2)

= 3.4 + 4

= 7.4

The answer is 7.4

Explanation
3.4(1) -2(-2) =?
3.4 + 4 = 7.4

Find the area of this trapezoid. Area = _______ square units. Round to the nearest whole number.

Answers

Answer:

119 square units

Step-by-step explanation:

To find the area of a trapezoid, use this formula: (a+b)/2 * h

Substitute 24, 10, and 7 for a, b, and h, respectively.

((24 + 10)/2) * 7

Step 1: Add 24 and 10 to get 34.

(34/2) * 7

Step 2: Divide 34 by 2 to get 17.

17 * 7

Step 3: Multiply 17 by 7 to get 119

119

The area of this trapezoid is 119 square units.

Answer:

119

Step-by-step explanation:

I took the quiz

Can anyone help me with 6? Please

Answers

Answer:   (2)

Step-by-step explanation:  y=18(0.75)  0.75 as a percent is 75%, kind of like what would happen in the graph with the mathematical term Pneumonoultramicroscopicsilicovolcanoconiosis.

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