y's death rate is given by d(t)=4+0.05 t^2. Here, t is measured in years, and t = 0 corresponds to the start of the year 1990. The birth and death rates are measured in thousands of births or deaths per year. At the start of 1990, the population of the city is 200 thousand.
Enter all the following answers correct to two decimal places...
Calculate the total number of births between the start of 1990 and the end of 1999.
Number of births = _____thousand.
Calculate the total number of deaths over the same period
Number of deaths = _____ thousand.