what is 13.48 cm + 7.6 cm, rounded to the correct number of significant figures?\na 21 cm\nb 21.080 cm\nc…
what is 13.48 cm + 7.6 cm, rounded to the correct number of significant figures?\na 21 cm\nb 21.080 cm\nc 21.08 cm\nd 21.1 cm
Answer
Explanation:
Step1: Add the values
$13.48+7.6 = 21.08$
Step2: Determine significant - figures for addition
When adding, we look at the decimal place of the least - precise number. 7.6 has one decimal place. So we round 21.08 to one decimal place.
Step3: Round the result
Rounding 21.08 to one decimal place gives 21.1
Answer:
d. 21.1 cm