Round off each of the following numbers to the indicated number of significant digits and write the answer in standard scientific notation. A). 4341 * 10^2 to three significant digits B). 93.441 * 10^3 to three significant digits C). 0.99155 * 10^2 to four significant digits D). 9.3265 to four significant digits
Round off each of the following numbers to the indicated number of significant digits and write the answer in standard scientific notation.
A). 4341 * 10^2 to three significant digits
B). 93.441 * 10^3 to three significant digits
C). 0.99155 * 10^2 to four significant digits
D). 9.3265 to four significant digits
Significant figures are the number of digits in a value that contribute to the degree of accuracy of the value.
To count the significant figures the following rules are considered into account:
1) All non zero digits are significant.
Example: In 123.1 there are four significant figures.
2) Zeros between two nonzero digits are significant.
ex: In 102, there are three significant figures.
3) Leading zeros (left side zeros) are not significant.
ex: In 0.00245 there are three significant digits.
4) Zeros that are right side of a decimal are significant.
ex: In 0.00240 there are three significant figures.
5) Zeros that are right side of a number and without a decimal are not significant.
In 200 there is only one significant figure.
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