Without solving, determine the character of the solutions of the equation in the complex number system.x2 + 8x + 16 = 0
A. two complex solutions that are conjugates of each other
B. a repeated real solution
C. two unequal real solutions
Answer: B
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Find the absolute value of the complex number.-5i
A. -5 B. 5 C. 5i D. 25
Find the requested probability.A box contains the eleven letters, MISSISSIPPI. Four letters are drawn one by one with replacement and recorded in order. What is the probability that the outcome is SIPS?
A. 
B. 
C. 
D. 
Solve the problem.A population is increasing according to the exponential function defined by y = 3e.04x, where y is in millions and x is the number of years. Which of the following should be done in order to answer the question "How long will it take for the population to quadruple?"
A. Solve 3e.04x = 4. B. Evaluate y = 3e.04(1/4). C. Solve 3e.04x = 12. D. Evaluate y = 3e.04(4).
Compute the discriminant. Then determine the number and type of solutions for the given equation.x2 + 7x + 6 = 0
A. 25; two unequal real solutions B. 0; one real solution C. -73; two complex imaginary solutions