618/7 = 88.28571429% or 88% correct to 2 significant figures.
90
90 degrees
A square and a rectangle are 4 sided figures each having 4 interior 90 degree angles
(76/100)90 = 68, to the justified number of significant digits from the problem statement; if the integers in the problem statement are considered exact, then the answer is 68.4
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 rule for significant figures is that all non-zero digits are considered significant. Zeros between non-zero digits are significant, as well as trailing zeros after a decimal point. Leading zeros (zeros to the left of the first non-zero digit) are not considered significant.
100000000
618/7 = 88.28571429% or 88% correct to 2 significant figures.
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.
90 pounds x 1 kg/2.205 pounds = 40.82 kg = 40 kg (to one significant figure)
90
20,090,050
90 degrees
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.