+8 The currrent, I0 (measured in amperes), decreases to I amperes after t seconds according to the formula I = I0e−0.51t. When 8 amperes decreases to 3.2 amperes, the equation is 3.2 = 8e−0.51t. Rounded to the nearest tenth of a second, how long, t, does it take for the current to decrease from 8 amps to 3.2 amps?
A. t = 0.4 second
B.t = 1.8 seconds
C. t = 2.5 seconds
D.t = 0.7 second
