ninahilaire ninahilaire
  • 13-12-2019
  • Mathematics
contestada

what is the volume of this problem ? please help!

what is the volume of this problem please help class=

Respuesta :

calculista
calculista calculista
  • 19-12-2019

Answer:

[tex]V=168\pi\ m^3[/tex]

Step-by-step explanation:

we know that

The volume of the figure is equal to the volume of the complete cylinder minus the hollow area.

The volume of a cylinder is equal to

[tex]V=\pi r^{2}h[/tex]

so

The volume of the figure is

[tex]V=\pi r_1^{2}h-\pi r_2^{2}h[/tex]

we have

[tex]r_1=9\ m\\r_2=5\ m\\h=3\ m[/tex]

substitute

[tex]V=\pi (9)^{2}(3)-\pi (5)^{2}(3)[/tex]

[tex]V=168\pi\ m^3[/tex]

Answer Link

Otras preguntas

You leave a 15% tip of $3.12. How much was the bill?
On mobile devices, the term ________ describes restarting the device, whether you do it from within the OS or with hardware buttons on the device.
marking brainlest if done in 5 mins A tile pattern on a wall is made up of two identical parallelograms and three identical triangles. What is the area of the t
What kind of monoatomic ions would phosphorus form?.
What factors linked (kept together) the Roman empire?
Subtract 1-3= and -2-7=
Fernando's uncle gave him $25 for his birthday and he earned $20 per week for mowing lawns. He saved his birthday money and all of his mowing money. How much mo
A dilation produces a smaller figure. Which is a possible scale factor? –2 one-third 1 4.
What is the value of x?
Which affects kinetic energy more? Mass or Velocity ?