Without solving, determine the character of the solutions of the equation in the complex number system.x2 + 2x + 2 = 0
A. two unequal real solutions
B. two complex solutions that are conjugates of each other
C. a repeated real solution
Answer: B
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Solve the problem.Suppose a business can sell x gadgets for p = 250 - 0.01x dollars apiece, and it costs the business 
dollars to produce the x gadgets. Determine the production level and cost per gadget required to maximize profit.
A. 10,000 gadgets at $150.00 each B. 111 gadgets at $248.89 each C. 13,750 gadgets at $112.50 each D. 11,250 gadgets at $137.50 each
Determine all critical points for the function.f(x) = x3 - 9x2 + 4
A. x = 0 and x = 3 B. x = -3 and x = 3 C. x = 0 and x = 6 D. x = 0
Solve the equation.
= 
A. {7}
B. {5}
C. {-7}
D. 
Give a rule for the piecewise-defined function. Then give the domain and range.
A. f(x) = 
; Domain: (-?, ?), Range: (-?, ?)
B. f(x) = 
; Domain: (-?, ?), Range: (-?, ?)
C. f(x) = 
; Domain: (-?, 2) ? (2, ?), Range: (-?, ?)
D. f(x) = 
; Domain: (-?, ?), Range: (-?, 2) ? (2, ?)