Find the sum of the series.x6 + x7+ x8 + x9 + ...
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find a pattern and use it to solve the problem.How many triangles are in the next figure?
A. 36 B. 16 C. 18 D. 12
Mathematics
Graph the function and y = cos x in the same rectangular system for 0 ? x ? 2?.y = 4 cos x
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.38% of those who purchase music CDs online are 18-23 years old.This is three and one-half times the number who are 38-43 years old. What percent of online music purchasers are 38-43 years old?
A. 114% B. 10.9% C. 38% D. 133%
Mathematics
Perform the division.
A. r2 + 2r + 3
B. 3r2 + 3r + 
C. 3r2 - 3r - 2
D. 3r2 + 3r + 2
Mathematics