No, they are not.
The measurement 102.400 m has six significant figures. All non-zero digits are significant, and zeros between significant digits or following a decimal point in a measurement are also counted as significant. In this case, the zeros after the "2" and before the decimal point are significant because they indicate precision.
Significant figures are the digits in a number that contribute to its precision. The rules include: all non-zero digits are significant; zeros between significant digits are significant; leading zeros are not significant; trailing zeros in a decimal number are significant; and in whole numbers without a decimal point, trailing zeros are not considered significant. When performing calculations, the result should be reported with the same number of significant figures as the measurement with the least significant figures involved in the calculation.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
In the number 30.1, there are three significant figures. The digits 3, 0, and 1 are all considered significant because they contribute to the precision of the measurement. Zeros that are placeholders or trailing zeros after a decimal point are also considered significant in this case.
All the digits are significant in this case. A zero between other digits is always significant, and all zeros after the decimal point are significant.
Significant figures in a number are all the non-zero digits and zeros between them that are significant for the precision of the measurement. To determine the significant figures in a number, count all the non-zero digits and any zeros between them. Trailing zeros after a decimal point are also significant figures.
There are 4 significant zeros in the measurement 0.000 040 200 m. Zeros between significant digits are considered significant, as well as zeros to the right of the decimal point in a measured quantity.
Five. All nonzero digits are significant and zeros in between significant digits are significant.
1, 3, and 9 all are significant. The zeros are merely place holders and thus, not significant.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
In the number 30.1, there are three significant figures. The digits 3, 0, and 1 are all considered significant because they contribute to the precision of the measurement. Zeros that are placeholders or trailing zeros after a decimal point are also considered significant in this case.
Five significant digits. Remember that all non-zero digits are significant, and all zeros in-between significant digits are significant.
The number of significant figures in a measurement is determined by the precision of the measuring instrument. Include all certain digits plus one uncertain digit (estimated or interpolated). Nonzero digits, zeros between nonzero digits, and trailing zeros in numbers containing a decimal point are considered significant.
Seven (7) significant figures. All digits left of the decimal to the right of any leading zeros. All digits to the right. The zero is counted because it is significant that the measurement was taken to that level of precision. The full measurement may have been 1039.5201, .5202, etc. For whatever reason, the measurement was taken to 3 digits to the right of the decimal.