Final answer:
1.3 x 10^4 in standard notation is 13000. The number in scientific notation contains two significant figures, indicating the precision of the measurement.
Step-by-step explanation:
The question is asking to convert the number in scientific notation, 1.3 x 10^4, into standard notation. To do this, we move the decimal point to the right 4 places because the exponent on 10 is 4. Therefore, 1.3 x 10^4 becomes 13000 when expressed in standard notation.
It is important to note that the number of significant figures in scientific notation indicates the precision of a measurement. 1.3 x 10^4 has two significant figures, so only the 1 and 3 are significant digits, and any trailing zeros are not counted as significant unless they are after a decimal point.