The Number N of Bacteria in a Refrigerated Food Is $N ( T ) = 10 T ^ { 2 } - 20 T + 600,1 \leq T \leq 20$

Multiple Choice

The number N of bacteria in a refrigerated food is given by $N ( T ) = 10 T ^ { 2 } - 20 T + 600,1 \leq T \leq 20$ where T is the temperature of the food in degrees Celsius.When the food is removed from refrigeration, the temperature of the food is given by $T ( t ) = 3 t + 2,0 \leq t \leq 6$ where t is the time in hours. Find the bacteria count after 0.5 hour.

A) About 565 bacteria
B) About 793 bacteria
C) About 653 bacteria
D) About 390 bacteria
E) About 705 bacteria