What is 7200 in scientific notation?

What is the difference between the predicted value and the actual value

What is the value of x in the following equation. -x ^3/2 = -27

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