Question

add the measurements. 23.4°c + 12.56°c write your answer with the correct number of significant figures. round if necessary. °c

Explanation:

Step1: Perform addition

$23.4 + 12.56=35.96$

Step2: Determine significant - figures in addition

When adding, we look at the decimal - place of the least precise number. 23.4 has one decimal place. So we round 35.96 to one decimal place.
$35.96\approx36.0$

Answer:

$36.0^{\circ}C$