To convert 65.75 kg to pounds, multiply by the conversion factor of 2.20 lb/kg resulting in 144.65 lb. Rounding to three significant figures, appropriate due to the conversion factor, gives us 145 lb.
The question asks to convert a mass measurement from kilograms to pounds. Given that 1 kilogram is equal to 2.20 pounds, we can calculate the mass in pounds by multiplying the mass in kilograms (65.75 kg) by the conversion factor (2.20 lb/kg).
The conversion is as follows:
Multiply the mass in kilograms by the conversion factor: 65.75 kg × 2.20 lb/kg = 144.65 lb.
The number of significant figures in the result is determined by the least number of significant figures in the given data. Since 65.75 has four significant figures and the conversion factor 2.20 has three significant figures, our final answer should be rounded to three significant figures.
Therefore, the mass in pounds, correctly rounded to three significant figures, is 145 lb.