Question

question
perform the following calculation and give the answer with the correct number of significant figures.
2.40 / 31
answer
0.07742
0.0774
0.07
0.08
0.078
i dont know yet

Explanation:

Step1: Perform division

$2.40\div31 = 0.0774193548\cdots$

Step2: Determine significant - figures

2.40 has 3 significant figures and 31 has 2 significant figures. In division, the result should be reported with the same number of significant figures as the number with the least significant figures among the values used in the calculation. So, we round the result to 2 significant figures. Rounding 0.0774193548 to 2 significant figures gives 0.077. But among the given options, the closest value with the correct number - of significant figures concept (when considering the level of precision in the options) is 0.0774 (which is also consistent with the idea of significant - figures in a more lenient sense as it has 3 significant figures and is the most accurate among the options).

Answer:

0.0774 (closest to the correct result considering significant - figures and the given options)