Evaluate the expression using the given values.4
+ 5
x = 9, y = -6
A. 66
B. -66
C. -6
D. 6
Answer: A
Mathematics
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Provide an appropriate response.For the function f(x) = 3x2 - 4x + 5, find f(a + 1).
A. 3a2 + 2a + 4 B. 3a2 + 4a + 6 C. 3a2 + 4a + 4 D. 3a2 + 2a + 6
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Sketch a typical level surface for the function.f(x, y, z) = x - y2 - z2
A. 
B. 
C. 
D. 
Mathematics
Graph the inequality.y ? x2 - 3
A. 
B. 
C. 
D. 
Mathematics
Find a rectangular equation for the plane curve defined by the parametric equations.x = 3t, y = t + 1; -2 ? t ? 3
A. y = 
x + 1; for x in -6 ? x ? 9
B. y = x2 + 1; for x in -2 ? x ? 2
C. y = 
x - 1; for x in -? < x < ?
D. y = -3x + 1; for x in -? < x < ?
Mathematics