Problem 37a

Given information

Given number =  

Step-by-step explanation

Rules to find significant figures for zero:

• Captive zeros (present between the nonzero digits) are significant.
• Leading zeros (present at the beginning of a number) are not significant.
• Trailing zeros (present at the end of a number) are not significant.
• Zeros present after the decimal are significant.

The numbers of significant zero are represented by underlined zeroes.

Since the zeros present in this number are captive zeros, they are all significant as.