Question

calculate
$\frac{2.56 \times 10 {}^{3} }{7.84 \times 10 {}^{4} }$
round off to correct significant figures is 3.14159. round off to correct two significant figure​

Answer 1

Explanation:

The answer of the calculation

0.5785

0.02856×298.15×0.112

will contain 3 significant figures as 0.112 contains 3 significant figures which is the lowest number of significant figures.

(ii) The answer to the calculation 5×5.364 will contain 4 significant figures as 5.364 contains 4 significant figures which are the lowest number of significant figures. Here, the exact figure 5 is not considered.

(iii) The answer to the calculation 0.0125+0.7864+0.0215 will contain 4 significant figures as the result will be reported to 4 decimal places.

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