convert 21.28°f to degrees celsius. round your answer to the correct number of significant figures.
convert 21.28°f to degrees celsius. round your answer to the correct number of significant figures.
Answer
Explanation:
Step1: Recall the conversion formula
The formula to convert Fahrenheit ($F$) to Celsius ($C$) is $C=\frac{5}{9}(F - 32)$.
Step2: Substitute the given value
Substitute $F = 21.28$ into the formula: $C=\frac{5}{9}(21.28 - 32)$. First, calculate the value inside the parentheses: $21.28-32=- 10.72$. Then, multiply by $\frac{5}{9}$: $C=\frac{5}{9}\times(-10.72)\approx - 5.96$.
Answer:
$-5.96^{\circ}C$