Identify the complex number as real or imaginary.i
A. Imaginary
B. Real
Answer: A
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Solve the problem.The disk (x - 4)2 + y2 ? 9 is revolved about the y-axis to generate a torus. Find its volume. (Hint: 
= 
?, since it is the area of a semicircle of radius 3.)
A. 36? B. 72?2 C. 18?2 D. 36?2
Find the simple interest for the period indicated. Then use table values to find the compound interest. Finally, find the difference between compound interest and simple interest. Round to the nearest cent. (Interest is compounded annually.)
Principal: $790 Rate: 6% Years: 16
A. $490.08 B. $392.28 C. $1,248.48 D. $458.48
Solve the equation.90x-2 - 5x-1 = 20
A. 
B. 
C. 
D. 
Use the rational zeros theorem to determine the potential rational zeros of the polynomial function. Do not find the zeros.f(x) = 6x4 + 4x3 - 3x2 + 2
A. ± 
, ± 
, ± 
, ± 1, ± 2
B. ± 
, ± 
, ± 
, ± 
, ± 1, ± 2, ± 3
C. ± 
, ± 
, ± 
, ± 
, ± 1, ± 2
D. ± 
, ± 
, ± 1, ± 2, ± 3, ± 6