Solve the problem.The profit (in millions of dollars) for Allied Manufacturing can be approximated by 
where x is the year 1989 ? x ? 2009. Approximate the average rate of change over a 3-year period. Round your answer to three decimal places when appropriate.
A. -0.675 million dollars
B. -6.285 million dollars
C. 0.135 million dollars
D. -0.885 million dollars
Answer: A
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Write a formula for the nth term of the arithmetic sequence. Do not use a recursion formula.0.25, 0.3, 0.35, 0.4, 0.45, . . .
A. an = 0.05n + 0.2 B. an = 0.1n + 0.4 C. an = 0.25 + 0.05n D. an = 0.1n + 0.2
Find all cube roots of the complex number. Leave answers in trigonometric form.-6
- 6i
A. 
cis 70°, 
cis 190°, 
cis 310°
B. 
cis 70°, 
cis 190°, 
cis 310°
C. 
cis 70°, 
cis 190°, 
cis 310°
D. 
cis 80°, 
cis 200°, 
cis 320°
For an election with 4 candidates (A, B, C, and D), we have the following preference schedule:
Using the plurality-with-elimination method, the winner of the election is
A. A. B. B. C. C. D. D. E. none of these
Solve the problem.A new homeowner has a triangular-shaped back yard. Two of the three sides measure 65 ft and 80 ft and form an included angle of 125°. The owner wants to approximate the area of the yard, so that he can determine the amount of fertilizer and grass seed to be purchased. Find the area of the yard rounded to the nearest square foot.
A. 5200 sq. ft B. 4260 sq. ft C. 2129 sq. ft D. 2130 sq. ft