What is the side length of a cube with a volume of 4913 m3?

m

Question

What is the side length of a cube with a volume of 4913 m3? 
 
 
 m

mathmale · Answer

Work backwards.  What's the formula for the volume of a cube of side length s?

Write out this formula and then set it = to 4913 m^3.

Then find the cube root of both sides.

rhondasommer · Answer

do you have options? if so; what are they?

judson_rockets · Answer

I dont

rhondasommer · Answer

spo volume of a cube is what

rhondasommer · Answer

like; how do you get the volume of a cube

judson_rockets · Answer

U mutiply

mathmale · Answer

Judson, would you please Google "volume of cube"?   It makes no sense at all to try to solve a problem like this one when you  don't know the formula for "volume of a cube."  You will need to know this and other basic volume formulas later on.

judson_rockets · Answer

kk

judson_rockets · Answer

I dont know how to get the answer im sorry

dani_rose · Answer

Formula for volume of a cube $$V=a^3$$

judson_rockets · Answer

So do i divide

rhondasommer · Answer

if $$a^3=4913 m^3$$

mathmale · Answer

Earlier I suggested that y ou find the CUBE ROOT of both sides of this equation.  That should give you the side length, a.

judson_rockets · Answer

I got an 86% on the test

rhondasommer · Answer

$$\mathrm{Subtract\:}\left(4913\right)\mathrm{\:from\:both\:sides}$$

rhondasommer · Answer

$$a^3-4913=0$$
factor $$\:a^3-4913$$$$\left(a-17\right)\left(a^2+17a+17^2\right)$$

rhondasommer · Answer

then just do $$\left(a-17\right)=0$$

rhondasommer · Answer

$$\left(a-17\right)=0$$ add 17 on both sides.
a=17

rhondasommer · Answer

make sense?