Question

The volume of the cube below is 1/8 cm2.
х
х
X
What is the value of x?

OA) x=
OB) x = 1
OC) x=
OD) x = 8

Answer 1

9514 1404 393

Answer:

  C)  x = 1/2 cm

Step-by-step explanation:

Apparently, we're to assume the units of x are centimeters. The volume of the cube is the product of its dimensions:

  V = x³ = 1/8

Then the value of x is ...

  x = ∛(1/8) = 1/∛8

  x = 1/2

_____

Additional comment

It can be useful to memorize the squares and cubes of small integers. The cubes you see most often are ...

  1³ = 1; 2³ = 8; 3³ = 27; 4³ = 64; 5³ = 125; 6³ = 216; 7³ = 343