jnawf7041 jnawf7041
  • 24-06-2021
  • Mathematics
contestada

The volume of this sphere is 25500cm3. Work out the length of the radius, r . Give your answer rounded to 1 DP.

Respuesta :

MrRoyal
MrRoyal MrRoyal
  • 24-06-2021

Answer:

The radius is 18.3cm

Step-by-step explanation:

Given

[tex]V = 25500cm^3[/tex]

Required

The radius, r

The volume (V) of a sphere is:

[tex]V = \frac{4}{3}\pi r^3[/tex]

So, we have:

[tex]25500 = \frac{4}{3}\pi r^3[/tex]

Solve for r

[tex]\pi r^3 = 25500 * \frac{3}{4}[/tex]

[tex]\pi r^3 = 19125[/tex]

Divide by [tex]\pi[/tex]

[tex]r^3 = \frac{19125}{\pi }[/tex]

[tex]r^3 = \frac{19125}{3.14}[/tex]

[tex]r^3 = 6090.8[/tex]

Take cube roots

[tex]r = 18.3[/tex] -- approximated

Answer Link

Otras preguntas

How can we identify if a karyotype is a male or a female?
In the model of DNA, if the yellow peg represents cytosine, then the green peg MUST be A) adenine. B) guanine. C) thymine. D) uracil.
I need help with Bio.
if you roll a six sided die what is the p(5)? Express your answer as a fraction and as a percent.
When the United States begin to industrialize in the late 18th and early 19th centuries employers had a little incentive to spend money on safety measures becau
4 + x/ 7 = 2 plz answer
Plz help me get the right answer to these ASAP
there are 12-thirty second ads and 24-fifteen second ads. how many ads are there in minutes
perform the indicated 9/4 ÷ 9
I need to solve for x on rectangle MNOP, MN=5x-13, NO=4x+2 and PO=2.5x+5 how do I find it?