Question

round uncertainty to one significant figure. round value to same decimal position as that single significant figure. dont use scientific notation.
question 3 (1 point)
the diameter of mars is measured by a satellite to be 6779.987 km with an uncertainty of 44.932 km. the correctly rounded off uncertainty is

km and the correctly rounded off value is

km.
hide hint for question 3
round uncertainty to one significant figure. round value to same decimal position as that single significant figure. dont use scientific notation.

Explanation:

Step1: Round uncertainty to one - sig fig

The uncertainty is 44.932 km. Looking at the first digit 4 and the digit to its right (4), since 4 < 5, we round down. So, 44.932 rounds to 40 km.

Step2: Round value to same decimal position

The value is 6779.987 km. Since the uncertainty is rounded to the tens place (40), we round the value to the tens place. 6779.987 rounds to 6780 km.

Answer:

40; 6780