Given the matrix, perform elementary row operations to obtain a zeros above and below the 1 in the second column without changing the entries in the first column.
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What will be an ideal response?
*Row+(-6, [C], 2, 1), *Row+(-2, [C], 2, 3), *Row+(9, [C], 2, 4)
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Find the derivative.s = t6 cos t - 12t sin t - 12 cos t
A. 
= - t6 sin t + 6t5 cos t - 12t cos t
B. 
= - t6 sin t + 6t5 cos t - 12t cos t - 24 sin t
C. 
= - 6t5 sin t - 12 cos t + 12 sin t
D. 
= t6 sin t - 6t5 cos t + 12t cos t
Identify the vertex and axis of symmetry of the parabola.x = -3(y - 4)2
A. Vertex: (4, 0); Axis of symmetry: x = 4 B. Vertex: (0, 4); Axis of symmetry: y = 4 C. Vertex: (0, -4); Axis of symmetry: y = -4 D. Vertex: (4, 0); Axis of symmetry: y = 0
For an election with four candidates (A, B, C, and D) we have the following preference schedule:
The ranking of the candidates using the pairwise comparisons method is
A. first: C; second: A; third: D; fourth: B. B. first: C; second: B; third: A; fourth: D. C. first: C; second: B; third: D; fourth: A. D. first: B; second: C; third: A; fourth: D. E. none of these
Find the perimeter of the figure.
A. 64 m B. 38 m C. 40 m D. 32 m