Solution:
Given is:
[tex]2.7 \times 10^{-4}[/tex]
We have to write in standard form
Standard form means writing the very large or very small numbers easily
From given,
[tex]2.7 \times 10^{-4}[/tex]
The exponent of 10 is -4
Exponent is negative
Which means, the decimal point is to be moved to left when converting the number to standard form
Therefore, move the decimal point towards left 4 places
[tex]2.7 \times 10^{-4} = 0.00027[/tex]
Thus the number is written in standard form