Joe is stacking four cubes on top of each other and painting the outside of the stack. how many sides will be painted, not counting the bottom which is on the ground.

4 x 4 + 1 (the top) = 17?

Sra

8th grade is NOT the School Subject. Is it MATH? If so, please state that.

Where is the vertex of the parabola?


y = x2 + 2x – 3

To determine how many sides will be painted, we need to consider how many cubes are involved.

In this case, Joe is stacking four cubes on top of each other. Let's break it down step by step:

- For the first cube, all six sides will be painted since it is the bottom cube and it is not touching any other cubes at this point.
- For the second cube, only five sides will be painted because the side touching the first cube will not be visible once they are stacked.
- For the third cube, five sides will also be painted, but this time, it will not be the same sides as the second cube since it will be touching a different side of the second cube.
- For the top cube, only four sides will be painted since it will be touching the third cube and thus one of its sides will not be visible.

So, to calculate the total number of painted sides, we add up the sides of all the cubes: 6 + 5 + 5 + 4 = 20.

Therefore, Joe will paint 20 sides, not counting the bottom side of the stack.