Question

question 7 (1 point)
four students measure the mass of an object, each using a different scale. they record their results as follows: a: 49.06g, b: 49g, c: 50g, d: 49.2g. which student used the most precise scale?
a
b
c
d

Explanation:

Precision in measurements refers to the number of decimal places. The more decimal places, the more precise the measurement. Student A's measurement \(49.06g\) has two decimal places, which is more than B (\(49g\), no decimal), C (\(50g\), no decimal), and D (\(49.2g\), one decimal).

Answer:

A.