All categories

3 years ago

Describe the process for calculating the volume of a cone. Use complete sentences.

Mathematics

2 answers:

Rashid [163]3 years ago

8 0

Answer:

Step-by-step explanation:

To find the volume of a cone, review the relevant formula:

V = (1/3)(base area)(height). If the radius of the base is given, assuming that the base is a circle, then (base area) is A = πr². Then the volume of the cone is V = (1/3)(πr²)h, where h is the height.

On a calculator, the proper sequence of commands and data would are as follows:

V = (1/3)(πr²)(h), or (on the calculator) V = (1÷3)*π*(r)^2*h.

Temka [501]3 years ago

4 0

To find the volume of a cone you need to know this formula
1/3 x pie x r^2 x the length
R^2 : is the radius squared

You might be interested in

A certain circle can be represented by the following equation. x^2+y^2+18x+14y+105=0 What is the center of the circle? What is t

Gre4nikov [31]

Answer:

See below.

Step-by-step explanation:

Recall the equation for a circle:

$(x-h)^2+(y-k)^2=r^2$ , where (h,k) is the center and r is the radius.

We need to turn the given equation into the above format. We do this by completing the square.

First, group them:

$(x^2+18x)+(y^2+14y)=-105$

For the first section, complete the square for $x^2+18x$ :

$x^2+18x+81-81$

$(x+9)^2-81$

Do the same for the second:

$y^2+14y$

$y^2+14y+49-49$

$(y+7)^2-49$

All together:

$((x+9)^2-81)+((y+7)^2-49)=-105$

$(x+9)^2+(y+7)^2-130=-105$

$(x+9)^2+(y+7)^2=25$

The center is (-9,-7).

The radius is $\sqrt{25}=5$

5 0

3 years ago

In ABC, if CB AC≅ , m∠A = 3x + 18, m∠B = 7x – 58, and m∠C = 2x – 8, find x and the measure of each angle.

lesya692 [45]

9514 1404 393

Answer:

x = 19

A = 30°

B = C = 75°

Step-by-step explanation:

In an isosceles triangle, the angles opposite the congruent sides have the same measures.

A = B

3x +18 = 7x -58

76 = 4x . . . . . . . . add 58-4x

19 = x . . . . . . . . . divide by 4

Then the equal angles measure ...

A = B = 3(19) +18 = 75

C = 2(19) -8 = 30

Angles A, B, C measure 75°, 75°, 30°, respectively.

_____

<em>Alternate solution</em>

The sum of angles in a triangle is 180°, so you could write ...

(3x +18) +(7x -58) +(2x -8) = 180

12x = 228 . . . . . add 48

x = 19 . . . . . divide by 12

6 0

3 years ago

On average a fifth grader blinks 15 times per minute. About how many times will a fifth grader blink in a day?

Juli2301 [7.4K]

Answer:

i think its either 5 or 3.

8 0

3 years ago

Read 2 more answers

Please help ASAP!!!

QveST [7]

The answer is 3. 1/6 because there are 6 sides in the cube. So the probability of getting a certain number is 1/6.

7 0

3 years ago

Does the chart below represent a proportional relationship? What is the rate of change?

Lilit [14]

This chart represents a proportional relationship. The rate of change will be 4.

<h3>What is the constant of proportionality?</h3>

Firstly, there is a proportional relationship.

Two values x and y are said to be in a proportional relationship if x=ky, where x and y are variables and k is a constant.

The constant k is called the constant of proportionality.

Given;

x y

1 4

2 8

3 12

4 16

Here, x = ky

put the first value

k = 1/4

This chart represents a proportional relationship.

So the rate of change will be

$Rate = \dfrac{y_2 - y_1}{x_2 - x_1}\\\\Rate = \dfrac{8 - 4}{2 - 1}\\\\Rate = 4$

Learn more about proportional ;

brainly.com/question/20048815

#SPJ1

5 0

2 years ago