Because there is quite a significant difference between paying $1.79 for something
and paying $179 for the same thing.
Zeroes to the left of the decimal point are significant if there is a decimal point present. Zeroes between numbers are always significant. Zeroes to the right of the decimal point are always significant. Non-zero numbers except for the last are always significant. The last non-zero number is always insignificant.
0.50 has two significant figures, the 5 and the trailing 0 after the decimal point. The leading zero before the decimal point is not significant.
That is correct.
5 As the zeroes are to the right of the decimal point, they too are significant
Five - zeros after the decimal point that aren't placeholders are significant.
Zeroes to the left of the decimal point are significant if there is a decimal point present. Zeroes between numbers are always significant. Zeroes to the right of the decimal point are always significant. Non-zero numbers except for the last are always significant. The last non-zero number is always insignificant.
0.50 has two significant figures, the 5 and the trailing 0 after the decimal point. The leading zero before the decimal point is not significant.
the zero to the left of the decimal is not significant however all zeros after a decimal point are significant. there are 7 significant zeros
The two digits after the decimal point.
It can be.
With no decimal point, it is 2.
All nonzero numbers are significant (1, 3, and 7 are significant). Zeros in-between significant digits are significant (the first zero is significant). All zeros after the decimal point that aren't placeholders are significant (last zero is significant).
Five - zeros after the decimal point that aren't placeholders are significant.
5 As the zeroes are to the right of the decimal point, they too are significant
True
That is correct.
1 as there is no decimal point. A decimal placed after the zero would indicate that it (the zero) is significant. No decimal means that it's a placeholder.