Determine whether f is a geometric sequence. If so, identify the common ratio.
A. No
B. Yes; - 
Answer: B
Mathematics
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Simplify.3(x + 2y - z) - 3(2x - y + 3z)
A. -3x + 3y - 12z B. 9x + 9y - 12z C. -3x + 9y + 12z D. -3x + 9y - 12z
Mathematics
Solve the problem.For what numbers x, 0 ? x ? 2?, does sin x = -1?
A. 
, 
B. ?
C. 
D. none
Mathematics
Express using positive exponents. Then, if possible, simplify.5- 2
A. -25
B. 
C. 25
D. 
Mathematics
Find the standard form of the equation of the ellipse satisfying the given conditions.Major axis vertical with length 12; length of minor axis = 6; center (0, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics