Write the expression in the standard form a + bi.
A. 
+ 
i
B. 
+ 
i
C. 
- 
i
D. 
- 
i
Answer: A
Mathematics
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Determine convergence or divergence of the series.
A. Diverges B. Converges
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Compute the compound interest.How long will it take for $3300 to grow to $14,800 at an interest rate of 4.1% if the interest is compounded quarterly? Round the number of years to the nearest hundredth.
A. 147.16 yr B. 36.79 yr C. 109.95 yr D. 37.35 yr
Mathematics
Solve the problem.An experienced accountant can prepare a tax return in 9 hours. A novice accountant can do the job in 23 hours. How long will it take them to do the job working together?
A. 
hr
B. 
hr
C. 
hr
D. 
hr
Mathematics
Solve the problem.If f(?) = cos ? and f(a) = 
, find the exact value of f(-a).
A. 
B. 
C. - 
D. - 
Mathematics