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What times itself equals fifty?
if you root 50 you get 7.07 (2sf) Answer: 7.07 (2sf)
What is 71.19 rounded?
It could be rounded to 71.2 (3sf) or 71 (2sf).
What does 2sf mean in maths?
In mathematics, "2sf" stands for "two significant figures." It refers to the practice of rounding a number so that it retains only the first two digits that carry meaningful information. For example, the number 0.00456 rounded to two significant figures would be 0.0046. This notation is often used in scientific calculations to indicate the precision of measurements.
What is an estimate of the quotient 4 divided by 6?
0.6667
What does 7862.9 round to?
Rounded to 4 significant figures it becomes 7863.0to 3 sf : 7860.0to 2sf : 7900.0to 1sf : 8000.0The following rules may help.Rounding off numbers.1) If the first figure to be discarded is 5 or more, then the previous figure is increased by 1.Example : 5.1935 = 5.194 (4sf) = 5.19 (3sf) = 5.2 (2sf) = 5 (1sf)2) Zeros must be kept to show the position of the decimal point or to indicate that zero is a significant figure
