Solve the problem.For some reason the quality of production decreases as the year progresses at a light bulb manufacturing plant. The following data represent the percentage of defective light bulbs produced at a light bulb manufacturing plant in the corresponding month of the year. 
Use the equation of the least squares line to predict the percentage of defective bulbs in June.
A. 2.3%
B. 2.15%
C. 2.0%
D. 2.20%
Answer: B
Mathematics
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Find the first term and the common ratio of the geometric sequence.
, 
, 
, 
, . . .
A. a1 = 
, r = 
B. a1 = 
, r = 
C. a1 = 
, r = 6
D. a1 = 
, r = 
Mathematics
Write a piecewise function for the given graph.
A. 
B. 
C. 
D. 
Mathematics
Write a general term an for the sequence. Assume that n begins with 1.4, 
, 
, 
, . . .
A. an = 
B. an = 
C. an = 
D. an = 
Mathematics
Subtract and simplify.
- 
A. 
B. 
C. 
D. 
Mathematics