Factor out the largest common factor.2x - 6
A. 2(2x - 3)
B. 2(x - 6)
C. 6(x - 1)
D. 2(x - 3)
Answer: D
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Parametric equations and and a parameter interval for the motion of a particle in the xy-plane are given. Identify the particle's path by finding a Cartesian equation for it. Graph the Cartesian equation. Indicate the portion of the graph traced by the particle and the direction of motion.x = 49t2, y = 7t, -? ? t ? ?
A. y = x2; Entire parabola, left to right (from
2nd quadrant to origin to 1st quadrant)
B. y = x2; Entire parabola, right to left (from
1st quadrant to origin to 2nd quadrant)
C. x = y2; Entire parabola, bottom to top (from
4th quadrant to origin to 1st quadrant)
D. x = y2; Entire parabola, top to bottom (from
1st quadrant to origin to 4th quadrant)
Solve the system by using Gaussian elimination with backward substitution or by reducing the matrix to reduced-row echelon form.x - y + z = 4x + y + z = 0x + y - z = 2
A. No solution B. (3, -1, -2) C. (3, -2, -1) D. (-1, 3, -2)
Perform the indicated operations. Express the answer as a single polynomial in standard form.9x7(-12x + 2)
A. -90x7 B. -108x + 18 C. -108x8 + 18x7 D. -108x8 + 2
Determine whether the matrix is in echelon form, reduced echelon form, or neither.
A. Neither B. Echelon form C. Reduced echelon form