4) The total electric current i (in Amperes) to pass a point in the circuit between t = 1 s and t = 3 s is 3 i = √² ( 1² + 1—12) dt Evaluate i. 1

The population P (in millions) of Texas from 2001 through 2014 can be approximated by the model P=20.913e0.0184t, where t represents the year, with t=1 corresponding to 2001. According to this model, when will the population reach 32 million?