Solve the problem.If a submarine goes 3k3 + 18k2 + 6k - 36 miles in3k + 6 hours, then what is its speed?
A. k3 + 4k2 - 6k mph
B. k2 + 4k - 6 mph
C. k2 - 4k + 6 mph
D. k2 + 12k - 6 mph
Answer: B
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Find the value of the specified finite sum.Given 
= 4, find 
.
A. 16 B. 1 C. -1 D. 0
Solve the problem.A mechanic is testing the cooling system of a boat engine. He measures the engine's temperature over time. Use a graphing utility to fit a logistic function to the data. What is the carrying capacity of the cooling system?
A. y = 
, 307°F
B. y = 
, 315°F
C. y = 
, 315°F
D. y = 
, 312°F
Solve the problem.A pulley with a diameter of 26 inches is driven by a belt which is moving 859 ft/min. To the nearest unit, how many revolutions per minute are made by the pulley?
A. 231 rpm B. 126 rpm C. 138 rpm D. 224 rpm
Solve the problem.Suppose the sales of a particular brand of appliance are modeled by the linear function 
, where S(x) represents the number of sales in year x, with 
corresponding to 2002. Use this model to predict the number of sales in 2017.
A. 2050 sales B. 2100 sales C. 1000 sales D. 1050 sales