A geometric sequence is given. Find the common ratio and write out the first four terms.{sn} = 
A. an = 6 ? (2)n-1
r = 2; s1 = 6, s2 = 12, s3 = 24, s4 = 48
B. an = 
(6)n-1
r = 
; s1 = 6, s2 = 12, s3 = 24, s4 = 48
C. an = 6 
n-1
r = 
; s1 = 6, s2 = 3, s3 = 
, s4 = 
D. an = 6 
n-1
r = 
; s1 = 6, s2 = 
, s3 = 
, s4 = 
Answer: C
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f(x) and 
f(x)
A. -7; -5 B. -5; -2 C. -7; -2 D. -2; -7
Use Stokes' Theorem to calculate the circulation of the field F around the curve C in the indicated direction.F = 3xi + 2xj + 7zk; C: the cap cut from the upper hemisphere x2 + y2 + z2 = 16 
by the cylinder 
A. 2? B. 8? C. 3? D. 4?
Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = 3xy2i + 3x2yj + 2xyk ; D: the region cut from the solid cylinder x2 + y2 ? 9 by the planes z = 0 and 
A. 486?
B. 
?
C. 243?
D. 972?
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A. $9.30 B. $0.30 C. $2.33 D. $4.65