Evaluate the absolute value expression.-
A. - 
B. 
C. 0
D. 
Answer: A
Mathematics
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Find the vertex of the parabola.f(x) = -5x2 + 30x - 43
A. (2, 3) B. (3, 2) C. (-3, 2) D. (-3, -2)
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Find the surface area of the surface S.S is the intersection of the plane 3x + 4y + 12z = 7 and the cylinder with sides y = 4x2 and y = 8 - 4x2.
A. 
B. 
C. 
D. 
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Which system of inequalities matches the given calculator-generated graph?
A. y < -x2 - 1 y > -4 B. y > -x2 - 1 y < -4 C. y < -x2 - 1 y < -4 D. y > -x2 - 1 y > -4
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Solve the problem.If f(x) = sin x and f(a) = - 
, find the exact value of f(a) + f(a - 4?) + f(a - 2?).
A. 
B. - 
C. - 
D. 
Mathematics