Solve the given problems.
An analysis of temperature records for Sydney, Australia, indicates that the average daily temperature (in° C) during the year is given approximately by
![212_ac9c1534-15e9-44a5-bd31-c8945282bef4.png](https://secure.tutorsglobe.com/CMSImages/212_ac9c1534-15e9-44a5-bd31-c8945282bef4.png)
where x is measured in months ( is Jan. 15, etc.). What is the daily time rate of change of temperature on March 1?