1.50 x 10^3
There are 2 significant figures in this measurement.
2
It is 1500.
The number of significant figures in a measurement can be clarified by using scientific notation, which explicitly indicates the precision of the number. For example, writing 1.23 x 10^3 clearly shows three significant figures. Additionally, using decimal points or trailing zeros can also help; for instance, writing 1500 with a decimal point (1500.) indicates four significant figures, while 1500 without a point might imply only two. Lastly, employing parentheses or overlines can also denote specific significant figures in certain contexts.
Two. Although there is no way to be sure that the number is not accurate to the unit's digit.
A zero is considered significant when it contributes to the precision of a measurement. This includes zeros that appear between non-zero digits (e.g., 105 has three significant figures) and trailing zeros in a decimal number (e.g., 2.300 has four significant figures). However, trailing zeros in a whole number without a decimal point (e.g., 1500) are not considered significant unless specified by a bar over the last significant digit or expressed in scientific notation.
Expressed in figures, 1500 million is equal to 1,500,000,000.
1500,00,00,0001500,00,00,0001500,00,00,0001500,00,00,000
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The only reliable way to report the correct significant digits in a measurement with trailing zeros is to use scientific notation. This format clearly indicates the number of significant figures by expressing the measurement as a product of a number between 1 and 10 and a power of ten. For example, 1500 can be represented as 1.5 x 10^3 (two significant figures) or 1.500 x 10^3 (four significant figures), eliminating ambiguity about the significance of the trailing zeros.
3% of 1500 = 0.03 x 1500 =45
1500 pounds