Respuesta :

Answer:

342.8

Step-by-step explanation:

Answer:

The required standard form is: 0.000857

Step-by-step explanation:

Consider the provided number.

[tex]8.57\times 10^{-4}[/tex]

If the exponent of 10 is a negative number then move the decimal point to the left.

If the exponent of 10 is a positive number then move the decimal point to the right

Here the exponent of 10 is a negative number so move the decimal point left.

Hence the required standard form is: 0.000857

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