Question

How many significant digits are in the number 204.0920
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Answer 1

Seven

Step-by-step explanation:

The rules for significant digits are:

• Non-zero digits are always significant.
• Zeros between significant digits are also significant.
• Trailing zeros are significant only after a decimal point.

Here, the 2, 4, 9, and 2 are significant because they are non-zero digits.

The first two 0s are significant because they are between significant digits.

The last 0 is significant because it is a trailing zero after a decimal point.

Therefore, all seven digits are significant.