Use an appropriate identity to find the exact value of the expression.sin (255°)
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find fx, fy, and fz.f(x, y, z) = xz
A. fx = z
; fy = 
; fz = x
B. fx = z
; fy = - 
; fz = x
C. fx = z
; fy = - 
; fz = x
D. fx = z
; fy = 
; fz = x
Mathematics
Find a set of polar coordinates for the point for which the rectangular coordinates are given.(2, 5)
A. (5.39, 0.81) B. (3.22, 0.81) C. (5.39, 1.19) D. (3.22, 2.19)
Mathematics
Graph the solution set of the system.x - 2y ? 2 x + y ? 0
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Solve the equation by factoring: x2 + 4x = 12
A. x = 2, 6 B. x = 2, -6 C. x = -2, -6 D. x = -2, 6
Mathematics