After carrying out the following operations, how many significant figures are appropriate to how in the result
(13.7 + 0.027) / 8.221
A) 1
B) 2
C) 3
D) 4
E) 5

Question

Quizplus · Accepted Answer

To determine the significant figures in the result, we need to first evaluate the expression:

(13)7 + 0.027 = 91 + 0.027 = 91.027

Next, we divide this result by F1F1F10, which we interpret as 1.

91.027 ÷ 1 = 91.027

The final result is 91.027, which has 5 significant figures. However, since the original numbers in the expression were only given to 3 significant figures (13 and 0.027), we cannot report the final result with more than 3 significant figures. Therefore, the appropriate number of significant figures is 3, and the best choice is (C).

After Carrying Out the Following Operations, How Many Significant Figures