To find the temperature in degrees Celsius using the formula \( c = \frac{n^3 + 4}{4} \), we first need to substitute \( n \) (the number of cricket chirps) into the formula.
Given \( n = 51 \):
\[ c = \frac{51^3 + 4}{4} \]
Now, let's calculate \( 51^3 \):
\[ 51^3 = 51 \times 51 \times 51 = 132651 \]
Now, substitute this value back into the formula:
\[ c = \frac{132651 + 4}{4} = \frac{132655}{4} \]
Now, divide:
\[ c = 33163.75 \]
Thus, the temperature in degrees Celsius is
\[ \boxed{33163.75 °C} \]
(Note: This is likely higher than typical temperatures, indicating that the formula might not actually reflect real-world conditions accurately for 51 chirps. See if the formula was misunderstood or if there's any additional context about its use.)