Use completing the square to rewrite the equation in one of the standard forms for a conic and identify the conic.x2 + 8x - y + 12 = 0
A. 
+ 
= 1; ellipse
B. y = (x + 4)2 - 4; parabola
C. x2 + y2 = 16; circle
D. 
- 
= 1; hyperbola
Answer: B
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Find the zeros of the polynomial function and state the multiplicity of each.f(x) = (x2 + 11x + 30)2
A. -
, multiplicity 4
B. 6, multiplicity 2; 5, multiplicity 2
C. -5, multiplicity 2; -6, multiplicity 2
D. 
, multiplicity 2; -
, multiplicity 2
Find the commission earned or the rate of commission. Round money answers to the nearest cent if necessary.Sales: $610 Commission: $27.45
A. 6.5% B. 5.5% C. 0.45% D. 4.5%
Solve the system by elimination.
A. (-2, -3) B. (2, -3) C. (2, 3) D. (-2, 3)
Solve the problem.37% of those who purchase music CDs online are 18-23 years old.This is three and one-half times the number who are 38-43 years old. What percent of online music purchasers are 38-43 years old?
A. 10.6% B. 37% C. 111% D. 129.5%