Questions: Round to 2 significant figures. 0.000789

Round to 2 significant figures.
0.000789
Transcript text: Round to 2 significant figures. \[ 0.000789 \]
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Solution

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Solution Steps

To round a number to a specified number of significant figures, we need to identify the first non-zero digit and count the required number of digits from there. We then round the number accordingly.

Step 1: Identify the First Non-Zero Digit

To round the number 0.0007890.000789 to 2 significant figures, we first identify the first non-zero digit. In this case, the first non-zero digit is 77.

Step 2: Count the Required Significant Figures

Starting from the first non-zero digit, we count two significant figures. The digits are 77 and 88.

Step 3: Round the Number

We round the number 0.0007890.000789 to two significant figures. The third digit after the first two significant figures is 99, which is greater than 55. Therefore, we round up the second significant figure from 88 to 99.

Final Answer

0.00079\boxed{0.00079}

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