Solve.
- 
= 2
A. 45
B. 18
C. 
D. 10
Answer: C
Mathematics
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Find the sum Sn of the first n terms of the geometric sequence. 
, - 
, 
, - 
, 
, . . . .; n = 9
A. 
B. 
C. 
D. 2464
Mathematics
Find the center and the radius of the circle.x2 + y2 = 100
A. (0, 0), r = 10 B. (0, 10), r = 100 C. (10, 10), r = 100 D. (0, 0), r = 100
Mathematics
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
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Provide an appropriate response.One factor of 2x2y3 - 4xy4 is
A. 2y2 - 4 B. 2x2y3 C. 2xy4 D. 4x2y4 E. x - 2y
Mathematics