Solve the system of equations by determinants. 6w + 3x - 6y + z = -36-w + x + 5y - z = 313w - x + y + 5z = -5 w + x + 6y - z = 39
A. w = 1, x = -2, y = -6, z = -3
B. w = -1, x = -1, y = 6, z = -6
C. w = 1, x = -1, y = 6, z = -3
D. w = 6, x = 1, y = 1, z = -6
Answer: C
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Solve. Write each fraction in simplest form.There are 12,600 spectators at a ball game. If 3500 are male, what fraction of the spectators are female ?
A. 
B. 
C. 
D. 
Find and simplify the difference quotient of f, 
, for the function.f(x) = 2x + 7
A. 2 + 
B. 2 + 
C. 0
D. 2
Describe how the graph of the given function can be obtained by transforming the graph of the reciprocal function f(x) = 1/x.f(x) = 
A. Shift the graph of the reciprocal function left 6 units, and then stretch vertically by a factor of 3.
B. Shift the graph of the reciprocal function left 6 units, and then stretch horizontally by a factor of 3.
C. Shift the graph of the reciprocal function right 6 units, and then stretch vertically by a factor of 3.
D. Shift the graph of the reciprocal function left 6 units, and then shrink vertically by a factor of 
.
Let U = {3, 5, 9, 12, 13, 17}, A = {3, 5, 12, 17}, and B = {9, 13}. Find A - B.
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