Find the conjugate of the complex number. Then multiply the complex number by its conjugate.-9 + 6i
A. -3; 117
B. -15; 117
C. -9 + 6i; 117
D. -9 - 6i; 117
Answer: D
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Identify the equation as representing either a circle, a parabola, an ellipse, or a hyperbola.3x2 + 8x - y = 72
A. Hyperbola B. Circle C. Parabola D. Ellipse
Determine what m and b represent.The cost, in dollars, of retaining the services of a computer repairman in Anchorville is given by 
where x is the number of hours worked.
A. 18 signifies the hourly rate, and 51 signifies the overhead charge. B. -51 signifies the hourly rate, and 18 signifies the travel cost. C. 69 signifies the cost for an on-site inspection. D. 51 signifies the hourly rate, and 18 signifies the overhead charge.
Find the quotient and write in rectangular form. First convert the numerator and denominator to trigonometric form.
A. 
+ i
B. 
C. 1 + 
i
D. 
i
Solve the quadratic equation by completing the square.x2 + 8x - 11 = 0
A. {-4 - 9
, -4 + 9
}
B. {-4 - 3
, -4 + 3
}
C. {-8 - 3
, -8 + 3
}
D. {4 - 3
, 4 + 3
}