Concept use formula for converting degree Fahrenheit to degree celsius
[tex]\begin{gathered} ^oC\text{ = }\frac{5}{9}^{}(^oF\text{ }-\text{ 32 )} \\ ^oC\text{ = }\frac{5}{9}\text{ ( -3.8 - 32 )} \\ ^oC\text{ = 0.5555556 }\times\text{ (- 35.8 )} \\ ^oC\text{ = -19.888} \\ ^oC\text{ = -19.9} \end{gathered}[/tex]Final answer = - 19.9
