The total surface area of the cube is
Step-by-step explanation:
Here we want to find an expression for the surface area of a cube if side x.
First of all, we notice that the cube consists of 6 equal faces; each face is a square, so the area of each face is the area of a square of side x, therefore:
Since we have 6 faces, the total surface area of the cube will be
And therefore,
So, this is the total surface area of the cube.
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Answer:
A)
Step-by-step explanation:
Hi there!
The given equations are written in point-slope form: where <em>m</em> is the slope of the line and
is a point that falls on the line
Notice how the line is travelling infinitely down as x increases. This means that the slope is negative.
Therefore, the equation of the line is either A or B.
Now, let's look at A:
This equation suggests that the point (4,-7) falls on the line, which it does.
Therefore, the equation of the graph is .
I hope this helps!