it could be 2 or 3 or 4
5,100 in 3 significant figures is still 5,100.
3 in A+
All of the digits are significant:Any digit after the decimal point is significant.A zero is significant if it comes between other significant digits.
Every digit in 40.725 is significant, so there are 5
It has 4. Every 0 after a decimal and after a significant digit is significant.
4 significant digits.
All digits are significant in this case. Any digit after a decimal point is a significant digit.
There are four of them
Three of them
5,100 in 3 significant figures is still 5,100.
Four
3 in A+
All of the digits are significant:Any digit after the decimal point is significant.A zero is significant if it comes between other significant digits.
Every digit in 40.725 is significant, so there are 5
It has 4. Every 0 after a decimal and after a significant digit is significant.
There is one significant digit in the number 10, as written.
A decimal number is simply a way of representing a number in such a way that the place value of each digit is ten times that of the digit to its right. A decimal representation does not require a decimal point. So the required decimal representation is 5100, exactly as in the question.