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The most significant achievement of Piankhi's rule was the reunification of Egypt. He successfully conquered Lower Egypt and asserted his control over the entire kingdom, establishing the 25th Dynasty or the Kushite Dynasty. This marked a significant resurgence of Nubian power and influence in ancient Egypt.
There are 2 because of the leading zeros rule. Zeros at the beginning of a number are never significant.
There are five significant figures in the given value. It is according to the rule of significant figures which say that zeros right to the decimal point are significant and all non zero digits are significant So , all the digits in the given value are significant figures i.e 5 significant figures.
The main disadvantage is that in may cases the level of precision is limited to three significant figures.
Delete any leading zeros.If the number is an integer, delete any trailing zeros.Skip to rule 4.Skip to rule 5.Count the number of digits remaining.
THREE Although they are an important part of the number the three zeros after the decimal point are positional zeros. The rule is :- " Zeros must be kept to show the position of the decimal point or to indicate that zero is a significant figure." The final zero (after 54) is the third significant figure. 0.000 540 **** positional zeros. 0.000 540 ..........*** significant figures (three)