Suppose that the relation G is defined as follows
g={(5,-1),(-1,-3),(5,9)}
Give the domain and range of G
Write your answers using set notation
Domain=
Range=
Thank you!

We just started the introduction into circles and i have no idea how to do this.

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8

Can some one explain this i got sent this. is this a threat i’m scared