Question

how many significant digits are there in \0.0805\?

Explanation:

Step1: Recall significant - digit rules

Non - zero digits are always significant. Leading zeros (zeros before the first non - zero digit) are not significant. Trailing zeros between non - zero digits are significant.

Step2: Analyze the number 0.0805

The leading zeros (the two zeros before 8) are not significant. The 8, 0, and 5 are significant.

Answer:

3