Find the product of the complex number and its conjugate.9 - 2i
A. 85
B. 11
C. 7i
D. 7
Answer: A
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Provide an appropriate response.Determine whether the sequence is arithmetic, geometric, or neither. If the sequence is geometric, find the common ratio r. If the sequence is arithmetic, find the common difference d.4, 12, 36, 108, 324
A. geometric, r = 12
B. geometric, r = 3
C. arithmetic, r = 
D. arithmetic, d = 12
Evaluate the expression.(-4)3
A. -64 B. -12 C. 12 D. 64
Solve.How much money will Orvin have in 4 years is he invests $5000 at 15% annual rate of interest compounded quarterly? How much will he have if it is compounded monthly? Use the interest formula 
. Round the answers to the nearest cent.
A. $5308.59 when compounded quarterly $5308.98 when compounded monthly B. $9011.14 when compounded quarterly $16,357.45 when compounded monthly C. $5308.59 when compounded quarterly $9076.77 when compounded monthly D. $9011.14 when compounded quarterly $9076.77 when compounded monthly
Krispy Kreme is considering building a franchise in a particular city. It will use a survey to determine the extent of interest among residents of the city. Which of the following procedures would be most appropriate for obtaining a statistically unbiased sample?
A. Survey a selection of people who are listed on the residential roll sheets of the city. B. Survey a random selection of customers coming out of other donut shops in the city. C. Survey a selection of people whose names are randomly chosen from the telephone directory of the target city. D. Survey a random selection of people whose names are obtained from national sales records of Krispy Kreme customers. E. none of the above procedures would be most appropriate.