# Question: Express the following calculations using the proper number of significant

Express the following calculations using the proper number of significant figures:

(a) 12.634 + 2.1,

(b) 13.5 – 2.134,

(c) π(0.25 m)2,

(d) √2.37/3.5

(a) 12.634 + 2.1,

(b) 13.5 – 2.134,

(c) π(0.25 m)2,

(d) √2.37/3.5

## Answer to relevant Questions

In doing a problem, a student adds 46.9 m and 5.72 m and then subtracts 38 m from the result. (a) How many decimal places will the final answer have: (1) zero, (2) one, or (3) two? Why? (b) What is the final answer? Nutrition Facts labels now appear on most foods. An abbreviated label concerned with fat is shown in Fig. 1.20. When burned in the body, each gram of fat supplies 9 Calories. (A food Calorie is really a kilocalorie, as will ...Two students go into Tony’s Pizza Palace and order a 12-in. (diameter) pizza. Shortly thereafter, the waitress brings an 8-in. pizza special. She explains that the 12-in. pizza was given to someone else by mistake and they ...In the Tour de France, a bicyclist races up two successive (straight) hills of different slope and length. The first is 2.00 km long at an angle of 5o above the horizontal. This is immediately followed by one 3.00 km long at ...Car A is in a straight- line distance d from a starting line, and Car B is a distance of 2 d from the line. Accelerating uniformly from rest, it is desired that both cars cross the starting line at the same speed. If so, ...Post your question