Round the following number to four significant figures and express the result in standard exponential notation: 29,724.33 A)29,720 B)29.72 × 10³ C)0.2972 × 10⁵ D)2.972 × 10⁴ E)2.972 × 10^-4

Question

Quizplus · Accepted Answer

Rounding 29,724.33 to four significant figures gives 29,720. Writing this in standard exponential notation gives 2.972 × 10^4. Therefore, the correct answer is D, 2.972 × 10^4.

Round the Following Number to Four Significant Figures and Express