Final answer:
Each of the given measurements has a different number of significant figures: 560,405 mi has six, 0.36086 m has five, 0.450 km has three, and 5,041 m has four.
Step-by-step explanation:
Significant figures (or significant digits) reflect the precision of measurements or calculations. Here are the amounts of significant figures for each measurement provided:
- Part A. 560,405 mi has six significant figures. All non-zero digits are considered significant.
- Part B. 0.36086 m has five significant figures. Zeros between non-zero digits and at the end of a number after the decimal are significant.
- Part C. 0.450 km has three significant figures. Trailing zeros after a decimal point in a number are significant.
- Part D. 5,041 m has four significant figures. Internal zeros within a number and all the following non-zero digits are significant.