Simplify the complex rational expression.
A. 1
B. - 
C. 
D. 
Answer: B
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Express the given complex number in rectangular form.1.689e2.461j
A. -0.2902 + 2.444j B. 2.444 - 0.2902j C. -1.313 + 1.063j D. 1.063 - 1.313j
Determine if the parabola whose equation is given opens upward or downward.y = -4x2 - 2x - 9
A. downward B. upward
Solve the problem.The Human Resources department of a medium-sized corporation reported that the average age of its employees is 
years and the average number of hours each employee worked each week is 
hours. Round each of these numbers to the nearest ten.
A. 60 years; 60 hours B. 50 years; 60 hours C. 60 years; 50 hours D. 50 years; 50 hours
Perform the requested operation on the given function.f(x) = 2x - 6, g(x) = 4x - 7Find (f - g)(x).
A. 6x - 13 B. -2x + 1 C. -2x - 13 D. 2x - 1