Respuesta :

quasarJose

Answer:

Explanation:

Significant numbers generally helps in measurement to express the accuracy of recorded experimental figures.

In order to solve the problem, there are rules that guides the identification of significant figures.

Some of these rules are:

  • Digits that are not zero are usually significant in a value
  • Zeros in the decimal portion are significant.
  • Zeros that are found between two significant digits are significant.

According to these rules, we can state the number of significant figures in the values:

2804      4 significant figures

2.84         3 significant figures

5.029       4 significant figures

0.0030681   5 significant figures

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