Write the general form of the equation of a circle r=1; (h, k)=(0,-1)

Find x to the nearest hundredth place

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

If rt is greater than ba, which statement must be true ?