an oil tank is being filled at a constant rate. the depth of the oil is a function of the number of minutes the tank has been filling. after 0 minutes of filling the oil is at 3ft and after 10 minutes of filling the oil is at 5ft. after 90 minutes of filling what is the depth of the oil

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