Solve the problem.The polynomial function 
represents the yearly income (or loss) from a real estate investment, where t is time in years. After how many years does income begin to decline?
A. 9.33 yr
B. 7 yr
C. 6 yr
D. 14 yr
Answer: B
Mathematics
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A. 4 B. 1 C. 0 D. 2
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Solve the problem.If f(x) = log5 x, find f(55log5 5).
A. 1 B. 5 C. 25 D. 0
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Convert the rectangular equation to polar form.y2 = 16x
A. r = 
B. r2 = 
C. r2 = 
D. r = 
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Convert as indicated. When necessary, round to the nearest tenth of a degree.133.5° F to degrees Celsius
A. 272.3° C B. 56.4° C C. 208.3° C D. 91.9° C
Mathematics