There is only one significant figure: 9.
The number .90 has two significant figures. The zero after the decimal point is significant because it indicates precision, showing that the measurement is accurate to the hundredths place. Therefore, both the 9 and the 0 count as significant figures.
618/7 = 88.28571429% or 88% correct to 2 significant figures.
90 degrees
90
A square and a rectangle are 4 sided figures each having 4 interior 90 degree angles
The digit 90 has only one applicable significant figure.
One mile is equal to 160934.4 centimetres. Therefore, rounded to three significant figures, 90 centimetres is equal to 90/160934.4 = 0.000559 miles.
It could be one or two.
The answer to the question that is given is 344444444/1000000000. This simplifies to 86111111/250000000.However, if your original number was meant to be 0.344... recurring, the answer is 31/90.
1. All non-zero numbers are significant 2. Zeros between non-zero digits count 3. Zeros at the beginning of a number do not count 4. Zeros at the end of a number that does not have a decimal are not significant 5. Zeros at the end of a number with a decimal are significant
90 pounds x 1 kg/2.205 pounds = 40.82 kg = 40 kg (to one significant figure)
618/7 = 88.28571429% or 88% correct to 2 significant figures.
90 degrees
20,090,050
90
A square and a rectangle are 4 sided figures each having 4 interior 90 degree angles
It is 90, exactly as in the question.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. Adding zeros after the decimal point is wrong because they imply a degree of accuracy (significant figures) for which there is no justification.