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Many numeric values in science cannot be expressed precisely. This may be because of variability. For example, the distance to the moon can be measured to an accuracy of around a millimetre, but the lunar orbit ranges from 356,400 km to 406,700 km so that a figure given accurate to 0.000 001 km is ludicrous!
Sometimes the values are not precise because of limitations in measurement: particularly when dealing with extremely large or small numbers. The Milky Way galaxy is thought to have a diameter of around 100,000 light years, but it could be as much as 180,000 ly.
Sometimes, even when the number is a constant, it may not be possible to express it exactly. As an example, the ratio of a circle's circumference to its diameter, pi, is an irrational number and so has infinitely many digits. It has been calculated to over 10 trillion digits. However, it has been estimated that just 40 digits is sufficient to describe the angle subtended by a hydrogen atom (the smallest atom) at the far end of the know universe. For school work, 3 significant figures (3.14) is usually sufficient and, you will rarely have to use more that 6 sig figs (3.14159).
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What is 1 significant figure of 37.753?
37.753 rounded to one significant figure becomes 40
What is significant figure of 0.000169?
The first significant figure of 0.000169 is the 1 and it has 3 significant figures.
How do you add significant figure?
There are a many great ways in which you could add significant figures. You could simply add them with math.
What is 37.699 to one significant figure?
Rounded to one significant figure it becomes 40
What is 167.77 to one significant figure?
It is 200 rounded to one significant figure
What is 1 significant figure of 37.753?
37.753 rounded to one significant figure becomes 40
What is 6276 as a significant figure?
6276 as a significant figure would be 4 significant figures.
When was the globe first used?
I am trying to figure that out too for my Science assignment :/
How do you write 1000 with one significant figure?
1000 is written with one significant figure, with only the 1 being a significant figure.
How many significant figures does 1 has?
It has 1 significant figure.
What is significant figure of 0.000169?
The first significant figure of 0.000169 is the 1 and it has 3 significant figures.
Significant figure 2.00?
The significant figure 2.00 has to do with the certainty of a measurement.
What is the significant figure of 78.00100?
The significant figure of 78.00100 is 78.00. It had 7 significant figures and a least significant decimal of -5.
What is 654 to 1 significant figure?
654 rounded to one significant figure becomes 700.
How many significant figures are in 0.3?
There is one significant figure in 0.3.
How many significant figure in 0.004 m?
0.004 has 1 significant figure.
What is 4252 to 1 significant figure?
4252 to 1 significant figure is 4000.
