Question

Perform the following calculation and report each answer with the correct number of significant figures.

5.63×2.1
a) 12
b) 11.8
c) 11.88
d) 11.9

Answer 1

Perform the given calculations and report each answer with the correct number of significant figures.

Step-by-step explanation:

When performing calculations with significant figures, the result should be reported with the same number of significant figures as the measurement with the least number of significant figures.

(a) 62.8 x 34 = 2139.2, should be reported as 2139.

(b) 0.147 + 0.0066 + 0.012 = 0.1656, should be reported as 0.166.

(c) 38 x 95 x 1.792 = 64524.32, should be reported as 64500.

(d) 15 - 0.15 - 0.6155 = 14.2345, should be reported as 14.2.

(e) 8.78 x (0.0500 + 0.478) = 4.37784, should be reported as 4.38.

(f) 140 + 7.68 + 0.014 = 147.694, should be reported as 148.

(g) 28.7 - 0.0483 = 28.6517, should be reported as 28.7.