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Answer:
Here's what I get.
Explanation:
[tex]\textbf{Number of Significant Figures}\\\begin{array}{ccccl}\textbf{One} & \textbf{Two} & \textbf{Three} & \textbf{Four} & \textbf{Comments} \\ & & 355 & &\text{All nonzero digits are significant}\\& &201 &1.808 & \text{Zeros trapped between nonzero digits are significant} \\ &40. & & &\text{Zeros trapped before a decimal point are significant}\\\end{array}[/tex]
[tex]\begin{array}{ccccl} &4.0 & & 100.0 &\text{Zeros after the decimal point are significant} \\ & & &1.200 & \\40 & 1200 &2710 & & \text{Trailing zeros with no decimal point are not significant}\\ 0.4 & & & &\text{Leading zeros before a decimal point are not significant} \\\end{array}[/tex]
One Significant Figure:
40
0.4
Two Significant Figures:
1,200
4.0
40.
Three Significant Figures:
201
355
2,710
Four Significant Figures:
100.0
1.200
1.808
What is significant figure?
All zeros that occur between any two non zero digits are significant. For example, 108.0097 contains seven significant digits. All zeros that are on the right of a decimal point and also to the left of a non-zero digit is never significant. For example, 0.00798 contained three significant digits.
Why we calculate significant figure?
By using significant figures, we can show how precise a number is. If we express a number beyond the place to which we have actually measured (and are therefore certain of), we compromise the integrity of what this number is representing.
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