Question

The value of 3.00km in yards up to correct significant figure and the scientific notation is., (1m=1.094yards)

Answer 1

Answer:

3280

Explanation:

1m=1.094 yards

3km= 3×1000×1.094

= 3282 yards

We need to represent it in 3 significant figures as 3.00km(given) and 1.094(given) both have 3 significant figures.

Hence, 3282 in four significant figures can be written as 3280 in three significant figures.

(2 in units place is less than 5 so its preceding digit remains the same while rounding off)