Question

Determine the number of significant digits in each number, and write the specific significant digits.

a. 1.405000
b. 2.0.0098
c. 3.39.999999
d. 4.13.00
e. 5.80,000,089

Answer 1

1. 405000 significant figures= 3 (405)

2. 0.0098 significant figures= 4 ( after the decimal 0098)

3. 39.999999 significant figures= 8 ( all of them )

4. 13.00 significant figures= 4 ( all of them )

5. 80,000,089 significant figures= 8 ( all of them )

Explanation:

1. 405000 significant figures= 3 (405)

2. 0.0098 significant figures= 4 ( after the decimal 0098)

3. 39.999999 significant figures= 8 ( all of them )

4. 13.00 significant figures= 4 ( all of them )

5. 80,000,089 significant figures= 8 ( all of them )

Here are the rules for determining the significant figures.

1) Numbers that are after the zero decimal are significant.

2) Non zero numbers before or after the decimal containing whether a zero or not are significant numbers

3) Zero numbers that are at the end are not significant numbers.

4) Zero after the decimal in significant figures is significant.