Solve and check.
= 
- 
A. x = 1
B. x = 0
C. x = 2
D. No solution
Answer: D
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Simplify using the power-to-power rule.(x9)-6
A. -6x9
B. -x54
C. -6x54
D. 
Solve the problem.Find the number of games played in a round robin tournament for the given numbers of teams. In a round robin tournament every team plays every other team once.
Use inductive reasoning to find a formula for the number of games played in a round robin tournament involving n teams.
A. 6 teams: 16 games 7 teams: 20 games n teams : 4(n - 2) games B. 6 teams: 21 games 7 teams: 28 games n teams : n(n + 1)/2 games C. 6 teams: 15 games 7 teams: 21 games n teams : n(n - 1)/2 games D. 6 teams: 14 games 7 teams: 18 games n teams : 4n - 10 games
Write the partial fraction decomposition of the rational expression.
A. 
+ 
B. 
+ 
C. 
+ 
D. 
+ 
The following stem-and-leaf plot gives the heights of the 20 highest mountains in two continents. Use the plots to answer the question. 
Find the mean of the heights of the 20 highest mountains in Continent Y.
A. 19,050 feet B. 19,720 feet C. 18,900 feet D. 18,840 feet