Solve the problem.The mathematical model 
represents the cost in dollars a company has in manufacturing x items during a month. Based on this, how much does it cost to produce 200 items?
A. $120,000
B. $83.33
C. $170,000
D. $0.42
Answer: C
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Refer to the following normal curve, with mean ? and standard deviation ?.
A data value of 90 corresponds to a standardized value of
A. 3. B. 36. C. 2. D. 12. E. none of these
Solve the problem. Round to two decimal places if needed.The minute hand of a clock is 8 inches long. How far does the tip of the minute hand move in 50 minutes?
A. 41.89 inches B. 43.12 inches C. 44.4 inches D. 40.15 inches
Find the direction angles of the vector. Round to the nearest degree, if necessary.v = -2i + 3j + 4k
A. ? = 115°, ? = 51°, ? = 33° B. ? = 119°, ? = 43°, ? = 14° C. ? = 113°, ? = 55°, ? = 40° D. ? = 112°, ? = 56°, ? = 42°
Solve the problem.Midtown Delivery Service delivers packages which cost 
per package to deliver. The fixed cost to run the delivery truck is 
per day. If the company charges 
per package, how many packages must be delivered daily to break even?
A. 9 packages B. 49 packages C. 14 packages D. 8 packages