Find the domain of the rational function.R(x) = 
A. {x|x ? 10, 3}
B. {x|x ? 10, -3}
C. {x|x ? - 30, 1}
D. {x|x ? -10, 3}
Answer: D
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Give the symbol that represents the portion of the line named and draw a figure showing just the portion named.
Line segment RP
A. 
B. 
C. 
D. 
For the given function, determine the amplitude and find the phase shift.6 sin x - 6
cos xGive the phase shift in radians in exact form.
A. 6 , 
B. 12, - 
C. 12, 
D. 12, - 
Use the Ratio Test to determine the convergence or divergence of the series.
?
.
?
A. ?Diverges. B. Converges. C. ?Ratio Test is inconclusive.
Solve.A mathematical model for the average of a group of people learning to type is given by 
where N(t) is the number of words per minute typed after t hours of instruction and practice 
per day, 5 days per week). What is the rate of learning after 50 hours of instruction and practice?
A. 0.15 words per minute typed per hour of instruction and practice B. 0.5 words per minute typed per hour of instruction and practice C. 0.12 words per minute typed per hour of instruction and practice D. 0.1 words per minute typed per hour of instruction and practice