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
4vir4ik [10]
10 months ago
13

The formula for the volume of a cone is V = jarh, where V is the volume, r is the radius, and h Is the heightWhat is the volume

of a cone with a radius of 4x and a height of 21xy^2??

Mathematics
1 answer:
olga nikolaevna [1]10 months ago
7 0

Given:

The radius, r=4x

The height,

h=21xy^2

To find the volume of the cone:

The volume of the cone formula is,

V=\frac{1}{3}\pi r^2h

Substitute the values of r and h in the above formula we get,

\begin{gathered} V=\frac{1}{3}\pi\times(4x)^2\times21xy^2 \\ =\frac{1}{3}\pi\times16x^2\times21xy^2 \\ =\pi\times16x^2\times7xy^2 \\ =112\pi x^3y^2 \end{gathered}

Hence, the volume of the cone is

V=112\pi x^3y^2

Thus, the correct option is option D.

You might be interested in
(x - 6)². Multiply it and simplify it
SpyIntel [72]

Answer:

x^2-12x+36

Step-by-step explanation:

The first step in solving this equation is to expand the square which makes the equation (x-6)(x-6). Then you distribute the x to both parentheses which leaves you with x^2-6x, and then you distribute the 6 to both parentheses which gives you 6x+36. Then add both binomials which leaves you with x^2-12x+36. The reason it is +36 and not -36 is because you are multiplying a negative 6 by another negative 6.

6 0
2 years ago
PLEASE HELP I DONT WANNA FAIL MY QUIZ!!!
Gwar [14]

Answer: 2.5 ft.

Step-by-step explanation: We know that the wall is 10ft and each poster is 1 1/4 ft, so subtract both posters from the wall, 10-2.5 = 7.5, then divide 7.5 by 3 since we need 3 lengths, and we get 2.5ft. So for x, it would be 2.5ft.

x=2.5

Hope this helps!

3 0
3 years ago
Read 2 more answers
CAN SOMEONE PLEASE HELP ME ANSWER THIS​
iren [92.7K]

Answer:

The answer to this question is 40

8 0
3 years ago
Read 2 more answers
Simplify: 4 square root of 2 plus square root of 32 minus square root of 16
VMariaS [17]
4\sqrt{2}+\sqrt{32}-\sqrt{16}=4\sqrt{2}+4\sqrt{2}-4=8\sqrt{2}-4
5 0
2 years ago
Ben works at a mobile phone store, where he earns a flat $80 for each 8-hour shift. He also earns a commission of $20 for each p
horrorfan [7]

Answer:

b

Step-by-step explanation:

he makes 80 dollars for a normal shift

20 dollars for every phone he sells 20m

and e is the total amount

e=20m+80

4 0
3 years ago
Other questions:
  • A video game system costs $185 and one video game costs $14.95. You can spend no more than $280 on the system and games. set up
    5·1 answer
  • Triangle A B C extended to both sides from corners A and B. D is a point closer to point A on the extended line. Angle C is loca
    8·1 answer
  • In a very survey of 60 student,60 study botany 50 study zoology and 48 studied biology.if 38 study all,how many study zoology al
    12·1 answer
  • You put a border around the perimeter of this room. How many yards of border did you
    5·1 answer
  • ASAP!!! HELP!!!!
    9·2 answers
  • Two more than four times a number is the same as 6 more than twice the number find the number ​
    12·1 answer
  • Solve the equation 5x+2y=14 for y
    6·1 answer
  • What is 5 2/3 + 6 1/8
    14·2 answers
  • If $12000 is invested in an account in which the interest earned is continuously compounded at a rate of 2.5%
    9·1 answer
  • What theorem can be used to prove that the two triangles are congruent?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!