Multiply. Write your answer in a + bi form.(3 - 2i)(9 + 5i)
A. 37 + 3i
B. 17 - 33i
C. 37 - 3i
D. -10i2 - 3i + 27
Answer: C
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Two chemicals react to form another chemical. Suppose that the amount of chemical formed in time t (in hours) is given by 
where x(t) is measured in pounds.
a. Find the rate at which the chemical is formed when t=4. Round to two decimal places. b. How many pounds of the chemical are formed eventually?
Simplify the radical expression. Assume all variables represent positive real numbers.
A. 8 B. ±4 C. 16 D. -4
Solve the problem.How long will it take for the population of a certain country to double if its annual growth rate is 
? Round to the nearest year.
A. 77 yr B. 12 yr C. 1 yr D. 27 yr
Refer to the graph of the function f(x). Provide an appropriate response.Find the x- and y-intercepts.
A. (0, 6), (-1, 0) B. (6, -1), (0, 0) C. (0, -1), (6, 0) D. (0, 0), (-1, 6)