How many significant figures are in the number 1.20 * 10³? A) 1 B) 2 C) 3 D) 4 E) 5

Question

Quizplus · Accepted Answer

When determining the significant figures in a number, we start counting at the first non-zero digit and continue counting until the end of the number. In this case, the first non-zero digit is the 1. The digits after the 1 are uncertain, so we don't count them as significant figures. Therefore, there are 3 significant figures in the number 1.20.

How Many Significant Figures Are in the Number 1