A geometric sequence is given. Find the common ratio and write out the first four terms.{tn} = 
A. r = 
; t1 = 
, t2 = 
, t3 = 
, t4 = 
B. r = 
n; t1 = 
, t2 = 
, t3 = 
, t4 = 
C. r = 
; t1 = 
, t2 = 
, t3 = 
, t4 = 
D. r = 
n; t1 = 
, t2 = 
, t3 = 
, t4 = 
Answer: C
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Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve 
, - 2 ? x ? 2, about the x-axis (dimensions are in feet). How many cubic feet of fuel will the tank hold to the nearest cubic foot?
A. 7 B. 2 C. 8 D. 3
Find the radius of convergence and the interval of convergence of the power series. \ Select the correct answer.
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Simplify. Express your answer with positive exponents. Assume that all variables are nonzero.(5x-9y9z-8)-3
A. 
B. 
C. 
D. 
Simplify, where possible.14x - 7y - 18x - 3y
A. -4x - 7y - 3 B. -4x - 10y C. -4x - 4y D. 4x - 10y