Answer
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Step 1:I'll solve this problem following the specified LaTeX and formatting guidelines precisely:
Step 2:: Identify the number and its current precision
• The number is 0.9976 • This number currently has 4 significant figures
Step 3:: Determine the rounding requirement
• We need to round to 2 significant figures • This means we'll keep the first two non-zero digits
Step 4:: Apply rounding rules
• Look at the third digit to determine rounding • In 0.9976, the third digit is 9 • Since 9 ≥ 5, we round up the second digit
Step 5:: Perform the rounding
• Rounding up gives us $$1.0
• The first two significant digits are 0.99
Final Answer
Key Points: - Kept the first two significant digits - Rounded up because the third digit (9) is ≥ 5 - Maintained proper scientific notation conventions
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