Question

26 fill in the blank 4 points solve the following equation to the correct number of significant figures. 2.543 - 3.20 × 0.5561 type your answer...

Explanation:

Step1: Calculate multiplication

$3.20\times0.5561 = 1.77952$

Step2: Calculate subtraction

$2.543-1.77952= 0.76348$

Step3: Determine significant - figures

The number $3.20$ has three significant figures. When multiplying and dividing, the result should have the same number of significant figures as the number with the fewest significant figures in the operation. When adding and subtracting, the result should be rounded to the same number of decimal places as the number with the fewest decimal places in the operation. Rounding $0.76348$ to three significant figures gives $0.763$.

Answer:

$0.763$