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

question 9

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

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Definitions:

Presbyopia

A form of age-related vision impairment characterized by difficulty in focusing on close objects, necessitating reading glasses or bifocals.

Iritis

is inflammation of the iris, the colored part of the eye, which can cause pain, light sensitivity, decreased vision, and redness of the eye, and requires prompt treatment to prevent serious complications.

Astigmatism

A common vision condition that causes blurred vision due to an irregularly shaped cornea or lens within the eye.