Acarpenter took the following measurements: 3.4 m, 10.25 m, 20.2 m, and 19 m.
determine if each statement is true or false.
a. the most precise measurement has 4 significant digits.
b. the least precise measurement has 2 significant digits.
c. written using the correct number of significant digits, the sum of the
measurements should be rounded to the tenths place.