Answer:
400.0°F is equal to 204.44°C in standard notation.
Step-by-step explanation:
To convert from Fahrenheit (°F) to Celsius (°C), we can use the following formula:
T(°C) = (T(°F) - 32) × 5/9
where T(°F) is the temperature in Fahrenheit and T(°C) is the temperature in Celsius.
Substituting T(°F) = 400.0 into the formula, we get:
T(°C) = (400.0 - 32) × 5/9
T(°C) = (368.0) × 5/9
T(°C) = 204.44
Therefore, 400.0°F is equal to 204.44°C in standard notation.