Which of the following expressions will produce an answer with three significant figures? A) 100x3.4 B) 2101/23.7 C) 20 - 40.8 D) 22.67 + 14.6

Question

Marilyn Gibson

Mathematics

6 April, 17:39

Which of the following expressions will produce an answer with three significant figures? A) 100x3.4 B) 2101/23.7 C) 20 - 40.8 D) 22.67 + 14.6

+3

Answers (1)

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Stinky · Answer 1

Significant figures have to do with decimals, so we can already say that A is incorrect since there are none.

B will be: 2101/23.7 = 88.6497 ... so you can see there are more than three significant figures

C: 20 - 40.8 = 20.8, so this should be the correct answer

D: 22.67 + 14.6 = 37.27, there are 4 significant figures

The correct answer is C. 20 - 40.8