Use the formula for Sn to find the sum for the geometric sequence.
, 
, 
, 
, 
A. 
B. 
C. 21
D. 
Answer: D
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Find the flux of the vector field F across the surface S in the indicated direction.F = x2y4i + yj - zk; S is the portion of the parabolic cylinder z = 9 - y2 for which 
and 3 ? x ? 5; direction is outward (away from the x-y plane)
A. 0 B. 108 C. 54 D. -108
Solve the problem.The current in the circuit is 9.55 mA. Determine the phase angle for the combination of the capacitor, resistor, and inductor. XC = 1550 ? R = 1700 ? XL = 2200 ? 
?? I
A. ? = -17.88° B. ? = 0.37° C. ? = 20.92° D. ? = 65.61°
For an election with candidates (A, B, C, D, and E), we have the following preference schedule:
Using the method of pairwise comparisons, the winner of the election is
A. A. B. B. C. C. D. D. E. E.
Solve the problem.Find the value for x in the following special right triangle. Use exact values. 
3 m
A. 6
m
B. 
m
C. 6 m
D. 3
m