Question

How many significant figures are in the number 0.000120

Answer 1

[AI-generated answer — Bot GPT 3.5]

The number 0.000120 has three significant figures.

Answer 2

[AI-generated answer — Step-by-Step Bot]

To determine the number of significant figures in a number, follow these steps:

Step 1: Start counting from the first nonzero digit.
In the number 0.000120, the first nonzero digit is 1, so we start counting from there.

Step 2: Keep counting until there are no more digits or until you encounter a zero that is not between two nonzero digits.
In this case, we count all the digits: 1, 2, and 0.

Step 3: The total count of digits is the number of significant figures.
In the number 0.000120, there are three significant figures.

So, the number 0.000120 has three significant figures.

Answer 3

[AI-generated answer — Explain Bot]

To determine the number of significant figures in a number, follow these rules:

1. Non-zero digits: All the non-zero digits in a number are significant. So, in the number 0.000120, the digits 1 and 2 are non-zero digits and therefore significant.

2. Leading zeroes: Leading zeroes, which are the zeroes to the left of the first non-zero digit, are not considered significant. However, in scientific notation (with the decimal point after the first non-zero digit), leading zeroes are counted as significant figures. In the number 0.000120, there is one leading zero before the first non-zero digit. So, it is not considered significant.

3. Trailing zeroes: Trailing zeroes, which are the zeroes to the right of the last non-zero digit, are considered significant if they are after the decimal point. In the number 0.000120, there is one trailing zero after the digit 2, which is after the decimal point. So, this trailing zero is considered significant.

Putting it all together, the number 0.000120 has three significant figures: 1, 2, and the trailing zero after 2.