Solve.The function N(t) = 
, t ? 8gives the body concentration N(t), in parts per million, of a certain dosage of medication after time t, in hours.Graph the function on the interval [8, ?) and complete the following:N(t) ? 
as t ? ?.
A. 
N(t) ? 0 as t ? ?.
B. 
N(t) ? 1 as t ? ?.
C. 
N(t) ? 0.1 as t ? ?.
D. 
N(t) ? 0.125 as t ? ?.
Answer: D
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Solve the equation.
= 
+ 8
A. {14}
B. {56}
C. 
D. {16}
Solve the problem.The average cost per unit of producing x units of a product is modeled by the function 
Describe the company's production level so that the average cost of producing each unit does not exceed 
.
A. At least 300,000 units B. Not more than 200,000 units C. Not more than 300,000 units D. At least 200,000 units
Solve the problem.A police helicopter is monitoring the speed of two cars on a straight road. The helicopter is at an altitude of 
feet directly above the road. At one instant, the angle of elevation from the first car to the helicopter is 
and the angle of elevation from the second car to the helicopter is 
How far apart are the two cars to the nearest foot?
A. 620 ft B. 4809 ft C. 207 ft D. 5092 ft
Solve the problem.The windchill temperature was -
, and the actual temperature was 
Find the difference between the actual temperature and the windchill temperature.
A. 58°F B. 29°F C. 25°F D. 31°F