Question

Find the volume of a sphere with a diameter of 13 inches. Use 3.14 to approximate π. Round answers to the nearest hundredth.

Answer 1

same as before

Answer 2

O OK

Answer 3

IM SORRY THE FORMULA
DIDNT POP UP WATS THE FORMULA AGAIN

Answer 4

http://www.mathwarehouse.com/solid-geometry/sphere/images/surface-area/picture-formula-surface-area-sphere.jpg

Answer 5

I am up with 2122.64

Answer 6

came*

Answer 7

hmm

Answer 8

keep in mind that the DIAMETER is 13
r = radius

Answer 9

The question seeks Volume of the sphere not the surface area.

Answer 10

ohh shoot... ohh ... I see.. you need VOLUME previouly was surface... ok then
volume of a sphere = \(\large \boldsymbol{\cfrac{4}{3}\pi r^3}\)

Answer 11

formula isnt showing, sorry

Answer 12

hmmm I assume you're using ... Internet Explorer?

Answer 13

Yes

Answer 14

hmm ahemm try in another browser, same page :|

Answer 15

Volume of a sphere = 4/3(pi)r^3

Answer 16

What are you getting for the volume?

Answer 17

i got 27594.32 :\

Answer 18

wait

Answer 19

i did it wrong

Answer 20

radius r = diameter / 2 = 13 / 2 = 6.5
V = 4/3(pi)r^3 = 4/3 x 3.14 x 6.5 x 6.5 x 6.5 = ?

Answer 21

\(\bf \cfrac{4}{3}\pi r^3\\ \quad \\
\textit{diameter is 13, thus radius is half that}\\ \quad \\
\cfrac{4}{3}\pi \left(\frac{13}{2}\right)^3\)

Answer 22

its 1150.346

Answer 23

yeap