Mathematics
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OpenStudy (anonymous):
@ganeshie8 What is the length of a side of a cube with a volume of 729 m3?
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OpenStudy (anonymous):
HELP
ganeshie8 (ganeshie8):
hint : Volume = \(\large s^3\)
ganeshie8 (ganeshie8):
\(\large s^3 = 729\)
solve \(\large s\)
OpenStudy (anonymous):
take the cube root of 729
OpenStudy (anonymous):
9
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ganeshie8 (ganeshie8):
Yep !
OpenStudy (anonymous):
What is the side length of a cube with a volume of 2744 mm3?
ganeshie8 (ganeshie8):
do the same thing
OpenStudy (anonymous):
14
ganeshie8 (ganeshie8):
\(\large \color{red}{\checkmark}\)
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OpenStudy (anonymous):
What is the volume of a cube, if the length of one side is 7 feet?
A.
343 cubic feet
B.
21 cubic feet
C.
49 cubic feet
D.
294 cubic feet
ganeshie8 (ganeshie8):
use the same formula (look at hint)
OpenStudy (anonymous):
C
ganeshie8 (ganeshie8):
no u need to cube
ganeshie8 (ganeshie8):
Volime = s^3
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OpenStudy (anonymous):
A
ganeshie8 (ganeshie8):
yes!
OpenStudy (anonymous):
A closet is 6 feet long, 3 feet wide, and 7 feet high. What is the volume of the closet?
OpenStudy (anonymous):
6x3x7=?
OpenStudy (anonymous):
126
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ganeshie8 (ganeshie8):
correct !
OpenStudy (anonymous):
@ganeshie8 The surface area of a cube is 864 in2. What is the area of one face of this cube?
ganeshie8 (ganeshie8):
how many faces a cube has ?
OpenStudy (anonymous):
12
ganeshie8 (ganeshie8):
nope, try again.
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ganeshie8 (ganeshie8):
a cube is just a box
ganeshie8 (ganeshie8):
it has 6 faces :
1) top
2) bottom
3) left
4) right
5) front
6) back
ganeshie8 (ganeshie8):
so volume of one face = 864/6 = ?
OpenStudy (anonymous):
144