Perform the indicated operation or operations.
A. - 
B. 
C. - 
D. - 
Answer: A
Mathematics
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Solve the problem.Hsien-Ta doesn't trust banks, so his savings are hidden under his mattress. Emilia has her savings in an investment at simple interest. In approximately what year did they have the same amount?
A. 1989 B. 1986 C. 1988 D. 1996
Mathematics
Graph the function as a solid curve and its inverse as a dashed curve.f(x) = x3 + 1 
A. 
B. 
C. 
D. 
Mathematics
Find the vertices and the foci of the given ellipse.
+ 
= 1
A. V: (-9, 0), (9, 0);
F:(- 6
, 0), (6
, 0)
B. V: (-81, 0), (81, 0)
F: (-9, 0) and (9, 0)
C. V: (0, -9), (0, 9);
F: (0, - 6
), (0, 6
)
D. V: (0, -9), (0, 9);
F: (0, -3) and (0, 3)
Mathematics
Find the sum of the infinite geometric series.
a. 
b. 
c. 
d. 
Mathematics