Question

Express in scientific notation. Make sure your answer has the same number of significant figures as the starting value. 0.01325 = _____ 1.325 x 10-2 1.0 x 10-2 1.3 x 10-2

Answer 1

When doing Scientific Notation you move the decimal in between the first two real numbers.In this case between 1 and three.Then you count the number of zeros in this case it -2. the answer is 1.325x10^-2

Answer 2

To express 0.01325 in scientific notation we must first move the decimal two places to the right. When we do this, we add a term to the end of the number of 10^x where x is the number of decimal places we moved. If we move the decimal left it is a positive number and if we move it right it is a negative number. Since we moved it right two places, our number becomes 1.325 x 10^-2. This would also be the final answer since we started off with 4 significant figures (leading zeros do not count as significant) and finish with four in 1.325. Final answer is 1.325 x 10^-2.