The third partial sum of the sequence 4, 12, 36, 108, ... is __________. 

A.
B.
C. 4 + 12 + 36 = 52
D. 4 + 12 + 36 + 108 = 160

Answer: C

Mathematics

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Solve the system by using Gaussian elimination with backward substitution or by reducing the matrix to reduced-row echelon form.-4x + 52 = 6y-2x + 3y = -2

A. (6, 5) B. No solution C. (7, 5) D. (7, 4)

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Mathematics

Estimate the fraction as 0, , or 1.

A. 0
B. 1
C.

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Mathematics

The measure of a vertex angle in a regular polygon with nine sides is

(a) 140° (b) 220° (c) 1260° (d) 20° (e) 40°

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Mathematics

Write out the first five terms of the sequence.{cn} = 

A. c1 = 0, c2 = 5, c3 = , c4 = , c5 = 
B. c1 = 1, c2 = 5, c3 = 25, c4 = 125, c5 = 625
C. c1 = 5, c2 = , c3 = , c4 = , c5 = 625
D. c1 = 5, c2 = 25, c3 = 125, c4 = 625, c5 = 3125

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Mathematics