You have the following set of measurements, and have been asked to perform several different calculations with them. For each calculation, provide the answer to an appropriate number of significant figures, or state that the method of significant figures is not appropriate for this calculation and give the result of the calculation with at least 8 digits. x = 123.4 mm y = 670 mm z = 5.89 mm w=111 mm 5 mm q=12.30 mm 1. (x+y)= 2.- 3. sin x x 9