Expression 1: "i" left parenthesis, "t" , right parenthesis equals 0.0 3 7 5 times left parenthesis, 1 minus "e" Superscript, negative StartFraction, 320 Over 0.0 6 3 , EndFraction "t" , Baseline , right parenthesis left brace, "t" greater than or equal to 0 , right braceit=0.0375·1−e−3200.063tt≥0