Question

question 13 (1 point)
the number of significant figures in 0.040 is
one.
two.
three.
four.

Explanation:

Step1: Understand the rules for significant figures

Leading zeros (zeros before non - zero digits) are not significant. Trailing zeros (zeros after non - zero digits) in a number with a decimal point are significant.

Step2: Analyze the number 0.040

The leading zero (the first 0) is not significant. The non - zero digit 4 is significant. The trailing zero (the last 0) is significant because it is after the non - zero digit and there is a decimal point.

Answer:

two.