Suppose That in a Certain Culture, the Equation $\mathcal { Q } ( t ) = 900 e ^ { 0.5 t }$

Multiple Choice

Suppose that in a certain culture, the equation $\mathcal { Q } ( t ) = 900 e ^ { 0.5 t }$ expresses the number of bacteria present as a function of the time t , where t is expressed in hours. How many bacteria are present at the end of 2 hours? The choices are rounded to the nearest whole.

A) 3,670 bacteria
B) 6,605 bacteria
C) 1,631 bacteria
D) 906 bacteria
E) 2,446 bacteria