The given pattern continues. Write down the nth term of the sequence suggested by the pattern.0, 2, 6, 12, 20, ...
A. an = 4n - 6
B. an = n2 - n
C. an = 2n - 2
D. an = 2n-1 - 1
Answer: B
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Solve the problem.Suppose c(x) = x3 - 22x2 + 20,000x is the cost of manufacturing x items. Find a production level that will minimize the average cost of making x items.
A. 11 items B. 13 items C. 12 items D. 10 items
Find the volume of the solid generated by revolving the region about the given axis. Use the shell or washer method.The region bounded by x = 6
, x = - 6y, and y = 1 about the line y = 1
A. 
?
B. 
?
C. 
?
D. 6?
Find the circumference of the circle. Use ? ? 3.14 and round to the nearest hundredth.radius = 110 mi
A. 172.7 mi B. 690.8 mi C. 345.4 mi D. 37,994 mi
Solve the problem.Jim and Tammi climbed to the top of a 26,400-foot mountain. How many miles did they climb?
A. 10 mi B. 6 mi C. 5.5 mi D. 5 mi