Solve the system of equations by finding the reduced row echelon form for the augmented matrix.w - x + 2y + z = 2x + y= 5 y - z = 3
A. No solution
B. (-2, 2, 3, z)
C. (-6, 1, 4, 1)
D. (-2 - 4z, 2 - z, 3 + z, z)
Answer: D
Mathematics
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for x = -477, y = 0
A. 477 B. -477 C. 0 D. undefined
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Solve the equation for ? if 
. Do not use a calculator.
?
What will be an ideal response?
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Find the order of the matrix product AB and the product BA, whenever the products exist.A is 4 x 2, B is 2 x 4.
A. AB is 2 x 2, BA is 4 x 4. B. AB is 4 x 4, BA is nonexistent. C. AB is nonexistent, BA is 2 x 2. D. AB is 4 x 4, BA is 2 x 2.
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Factor the trinomial square and use the square root method to solve the equation.
A. 
, 
B. 
, 
C. 
, 
D. 
, 
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