What is the number of significant figures in | vedclass

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(B) First,perform the addition inside the parentheses: $3.20 + 4.80 = 8.00$.According to the rules of significant figures for addition,the result shou

Vedclass · Accepted Answer

$3$

Vedclass · Answer

(B) First,perform the addition inside the parentheses: $3.20 + 4.80 = 8.00$.According to the rules of significant figures for addition,the result should be reported to the same number of decimal places as the measurement with the fewest decimal places.Both $3.20$ and $4.80$ have two decimal places,so the sum $8.00$ is correct to two decimal places.Thus,the expression becomes $8.00 	imes 10^5$.The digits $8$,$0$,and $0$ are all significant.Therefore,there are $3$ significant figures.

What is the number of significant figures in the result of $(3.20 + 4.80) \times 10^5$?

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