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Q
QuestionMathematics

Round 0.9976 to 2 significant figures.
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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