Question

http://prntscr.com/i3y1t9

Answer 1

@dude

Answer 2

V=4/3pi R100^3?

Answer 3

Nerp, this is a different equation
\(A=4\pi r^2\)

A= Surface Area
r= Radius

Answer 4

100 = 4pi R^2?

Answer 5

100 pi*
\[100\pi = 4\pi r^2\]

Answer 6

So how do I determine the radius?

Answer 7

Divide the diameter by 2, sorry for the late responses

Answer 8

100 is the diameter, right?

Answer 9

\(\color{#0cbb34}{\text{Originally Posted by}}\) @dude
Divide the diameter by 2, sorry for the late responses
\(\color{#0cbb34}{\text{End of Quote}}\)
My mistake that was not what I meant
\[100\pi = 4\pi r^2\]
Solve that equation

Answer 10

5,-5

Answer 11

We can't have negative radii so we just get rid of -5
Now that we have the radius, we can solve for the volume
\[V=\frac43\pi r^3\]

Answer 12

http://prntscr.com/i3yffn

Answer 13

Substitute 5 for r
\[V=\frac43\pi5^3\]

Answer 14

http://prntscr.com/i3yh6m

Answer 15

Divide 500 by 3

Answer 16

166.6666667

Answer 17

.66666...
is just \(\frac23\)

Answer 18

So its either b or c

Answer 19

Your answer was 166.66667
but .6666667 is just \(\frac23\)
So it is 166\(\frac23\pi\)

Answer 20

Okie, thanks YAY 100%

Answer 21

:P