Solve the system by the elimination method. x + 5y = 45-3x + 6y = 54
A. {(-9, 0)}
B. {(0, 9)}
C. {(1, 8)}
D. ?
Answer: B
Mathematics
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Evaluate the integral.
dz
A. 7 sinh (z6/7) + C B. 7 sinh (z1/7) + C C. - sinh (z1/7) + C D. 7 z1/7 sinh(z1/7) + C
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The graphing calculator screens show a system and the point of intersection. Choose the screen which best represents the given system.y = 2x - 9y = -2x + 3
A. 
B. 
C. 
D. 
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Complete the square to find the coordinates of the vertex for the given parabola.y2 + 2y + 9x + 28 = 0
A. Vertex: (-3, 2) B. Vertex: (1, -3) C. Vertex: (2, 1) D. Vertex: (-3, - 1)
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Find a quadratic equation with integer coefficients that has the given solution set.{2}
A. x2 - 4x - 4 = 0 B. x2 - 4 = 0 C. x2 - 4x = 0 D. x2 - 4x + 4 = 0
Mathematics