Find Dxy. y = 2
A. 
B. 
C. 7x6
D. 
Answer: C
Mathematics
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Determine the order of the matrix.
A. 6 × 6 B. 9 C. 2 × 3 D. 3 × 3
Mathematics
Solve the system of equations.4x + 4y + z = -34x - 3y - z = -195x + y + 2z = -11
A. x = 1, y = 2, z = -3 B. x = -3, y = 1, z = 2 C. x = -3, y = 2, z = 1 D. Inconsistent
Mathematics
Subtract. Check by adding.656 - 11
A. 643 B. 545 C. 667 D. 645
Mathematics
Multiply.(5y + 2)(4y - 1)
A. 20y2 + 3y - 2 B. 9y2 + 1 C. 20y2 - 2 D. 20y2 - 13y - 2
Mathematics