Every one of the six digits.
Daniel and Shay
When the last digit of a significant digit is 5, you always round up.
All digits are significant in this case. Any digit after a decimal point is a significant digit.
The first significant digit is the 5, which is in the ten-thousandth's position.
Zero is considered a significant digit when it is to the left or the right of the decimal point. It is also a significant digit when it follows a non-zero digit or when it is between two digits.
Four - zeros in-between significant digits are significant.
4 significant digits.
All four digits are significant.
All digit are significant except: leading zeros,in the case of integers, trailing zeros.All digit are significant except: leading zeros,in the case of integers, trailing zeros.All digit are significant except: leading zeros,in the case of integers, trailing zeros.All digit are significant except: leading zeros,in the case of integers, trailing zeros.
Four - zeros between significant digits are significant.
There aren't varying degrees of significance - either it's a significant digit or it's not. Nine and two are significant and the two zeros aren't.
To one significant digit, 37.19 is 4x101. Writing it as 40 makes it unclear as to whether you have 1 significant digit or 2.