The ratio of a model car to a regular car is 1: 16. the model is 6.25 inches long. what is the length of the actual car in feet and inches? what if the ratio of the model car was 2: 32, then what would be the actual length of the car?

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 %