Perform the indicated operations.(6x2y3 - xy - y2) + (x2y3 + 3xy + 4y2)
A. 5x2y3 - 4xy - 5y2
B. 6x2y3 + 3xy + 4y2
C. 7x2y3 + 4xy + 5y2
D. 7x2y3 + 2xy + 3y2
Answer: D
Mathematics
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Solve.
A. (-2, 12), (-3, 15) B. (-2, 0), (-3, -3) C. (2, 12), (3, 15) D. (2, 3)
Mathematics
Factor completely.18x2 - 78x - 60
A. (18x + 12)(x - 5) B. 6(3x - 2)(x + 5) C. (3x + 2)(6x - 30) D. 6(3x + 2)(x - 5)
Mathematics
Solve the system of equations by Gaussian elimination. If there is an unlimited number of solutions, find two of them.6x + 9y = 9-2x - 4y = -4-8x + 9y = 9
A. x = -1, y = 2 B. Inconsistent C. x = 0, y = 1 D. Unlimited: x = -1, y = 2; x = 0, y = 1
Mathematics
Write the number in decimal form.1.32 × 103
A. 1320 B. 13,200 C. 39.6 D. 132
Mathematics