Find the surface are of this cube 8ft 8ft 8ft

For this case we have by definition, that the surface area of a cube is given by:

Where:

l: It's the side of the cube

We have as data, according to the figure, that:

Substituting in the figure:

Thus, the surface area of the cube is

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3

why can't you?

step-by-step explanation: