Find the root.
A. -9
B. 13.5
C. Not a real number
D. 27
Answer: A
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Solve the problem.In a sports league of n teams in which each team plays every other team twice, the total number N of games to be played is given by N = n2 - n. What is the total number of games to be played in a football league having 19 teams?
A. 38 B. 380 C. 342 D. 361
Find the eccentricity of the ellipse.Find the eccentricity of an ellipse centered at the origin having a focus of (0, 
) and corresponding directrix y = 
A. 
B. 
C. 
D. 
Answer the question.How can the graph of f(x) = 
- 4 be obtained from the graph of y = 
?
A. Shift it horizontally 11 units to the right. Stretch it vertically by a factor of 4.
B. Shrink it horizontally by a factor of 
. Shift it 4 units down.
C. Shift it horizontally 11 units to the left. Shift it 4 units up.
D. Shift it horizontally 11 units to the left. Shift it 4 units down.
Simplify. - 4/5 / 3/7
A) 1 13/15 B) 12/35 C) -1 13/15 D) -4/105 E) -12/35