1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SIZIF [17.4K]
3 years ago
14

What is the volume of the cone below? ):

Mathematics
1 answer:
svetoff [14.1K]3 years ago
8 0

Answer:

A. 112π units³

General Formulas and Concepts:

<u>Symbols</u>

  • π (pi) ≈ 3.14

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Geometry</u>

Volume of a Cone Formula: \displaystyle V = \frac{1}{3} \pi r^2h

  • <em>r</em> is radius
  • <em>h</em> is height

Step-by-step explanation:

<u>Step 1: Define</u>

Radius <em>r</em> = 4

Height <em>h</em> = 21

<u>Step 2: Find Volume</u>

  1. Substitute in variables [Volume of a Cone Formula]:                                      \displaystyle V = \frac{1}{3} \pi (4)^2(21)
  2. Evaluate exponents:                                                                                         \displaystyle V = \frac{1}{3} \pi (16)(21)
  3. Multiply:                                                                                                             \displaystyle V = \frac{16 \pi}{3}(21)
  4. Multiply:                                                                                                             \displaystyle V = 16 \pi \cdot 7
  5. Multiply:                                                                                                             \displaystyle V = 112 \pi
You might be interested in
The cost of K-12 education per student was $2200 in 1978 and increased to $10,300 in 2008. (Source: Department of Education). (a
kobusy [5.1K]

Answer: C=270x+2200

Step-by-step explanation:

Given

Cost per student in the year 1978 is $2200

The cost increases to $10,300 in 2008

Suppose C=mx+a is the linear equation defining the cost per student after x years

Substitute the value for 1978

\Rightarrow 2200=m(0)+c\\\Rightarrow c=2200

After 30 years it becomes

\Rightarrow 10,300=m(30)+2200\\\Rightarrow 30m=8100\\\Rightarrow m=270

Thus, the linear equation becomes

\Rightarrow C=270x+2200

6 0
3 years ago
Simplify.
vichka [17]

Answer

your answer is not shown but the correct answer based on the top is going to be −

7.6x + 6.393

please check to ensure that you wrote the problem correctly as well as your answers.

Step-by-step explanation:

6 0
3 years ago
Work out the size of angle a
satela [25.4K]

Answer:thre

Step-by-step explanation:

8 0
3 years ago
What is 8x51 in multiplcation properties
hram777 [196]
51 x 8 = 408

It can be in this way: 51*8=408

3 0
3 years ago
Read 2 more answers
A circle has a radius of 3 cm. What is its:<br> a. Diameter? <br> b. Area? <br> c. Circumference?
larisa86 [58]

Answer:

Its B

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • How do you find the sum or product 34+0+18+26
    8·2 answers
  • Ok I need help please
    10·1 answer
  • How many golf balls will fit into a suitcase
    7·1 answer
  • jacob bought a place mat. The place mat has four sides and only one pair of parallel sides. Which could be the shape of Jacob's
    6·2 answers
  • Is x = 22 a solution to this inequality?<br> x-1&lt;0<br> Type yes or no.<br> arnell
    9·2 answers
  • Mrs. Murphy by balloons garlands paper lanterns and banners to decorate a school party she got three times as many bags of ballo
    11·1 answer
  • Please help. We have this for homework.
    8·1 answer
  • John withdrew 1/4 of his savings to use as deposit on a new phone.He had 164.00 in his savings account.How did John withdrew for
    14·1 answer
  • 5th grade math. correct answer will be marked brainliest
    10·2 answers
  • Find the value of 15/4 / 5/8. Show your reasoning.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!