Rewards will be given properly which of the following numbers is irrational? a. 625.49 b. 625.89 c. v 90 d. v 900 ( a. the 49 is continual )

The average daily maximum temperature for laura’s hometown can be modeled by the function f(x)=4.5sin(πx/6)+11.8 , where f(x) is the temperature in °c and x is the month. x = 0 corresponds to january.what is the average daily maximum temperature in may? round to the nearest tenth of a degree if needed.use 3.14 for π .