Jocelyn is training for a race by running several miles each day. She tracks her progress by recording her average speed in minutes per mile for each day since she started training. Based on the information given, what could Jocelyn expect to have for her average speed on the 9th day?

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %