Questions: How many significant figures are there in each of the following numbers? 65.00 4094000.0 1930 838.0

Transcript text: How many significant figures are there in each of the following numbers? \[ \begin{aligned} 65.00 & \square \\ 4094000.0 & \square \\ 1930 & \square \\ 838.0 & \square \end{aligned} \]

Solution

Solution Steps

Step 1: Determine Significant Figures for 65.00

The number 65.00 has four digits. The trailing zeros after the decimal point are significant. Therefore, the number of significant figures is 4.

Step 2: Determine Significant Figures for 4094000.0

The number 4094000.0 has a decimal point, which makes the trailing zero significant. Therefore, the number of significant figures is 8.

Step 3: Determine Significant Figures for 1930

The number 1930 does not have a decimal point, so the trailing zero is not considered significant. Therefore, the number of significant figures is 3.

Step 4: Determine Significant Figures for 838.0

The number 838.0 has a decimal point, which makes the trailing zero significant. Therefore, the number of significant figures is 4.

Final Answer

\[ \begin{aligned} 65.00 & \quad \boxed{4} \\ 4094000.0 & \quad \boxed{8} \\ 1930 & \quad \boxed{3} \\ 838.0 & \quad \boxed{4} \end{aligned} \]

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