Answer:
8
Step-by-step explanation:
[-2][-2]=-2 x-2=4
4+4=8
I think, not 100% sure, but I think it is square root (A/4pi)=r
Answer:
Option 2
Step-by-step explanation:
The quantities are not proportional because the line of the graph is both passing through the origin. It might have been proportional if it was passing through the origin.
Answer:

Step-by-step explanation:

<em>Replace it with y</em>

<em>Exchange the values of x and y</em>

<em>Solve for y</em>

<em>Subtracting 1 from both sides</em>

<em>Dividing both sides by 2</em>

<em>Replace it by </em>
So,
