Step 1 :Let \(y(t)\) be the population of the state, in millions, \(t\) years after the year 2000. The exponential growth function for this state's population is given by \[y(t)=21.8 e^{0.015 t}\]
Step 2 :We are asked to find the estimated population of the state in the year 2035. To do this, we substitute \(t = 2035 - 2000 = 35\) into the function.
Step 3 :Substituting \(t = 35\) into the function, we get the population as \(36.852002894664196\) million.
Step 4 :Rounding this to one decimal place, we get the population of the state in 2035 as approximately \(36.9\) million.
Step 5 :Final Answer: The estimated population in 2035 is \(\boxed{36.9}\) million.