Solve the problem. x + 2y - z = 6 3x + 2y + z = 2(x + 2y)2 - z2 = -12
A. {(3, 0, -4)}
B. {(2, 0, -4)}
C. {(3, 0, -5)}
D. {(2, 0, -5)}
Answer: B
Mathematics
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A. 
B. 
C. 
D. {0}
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Use a calculator to find the approximate value of the composition. Round your answer to four decimal places. The expression may be undefined.sin (arctan (2))
A. 0.8944 B. 0 C. Undefined D. -0.8172
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Use the encoding matrix E = 
, an additional coding matrix, F = 
, plus the matrices I = 
and O = 
to answer the question.4(E + 3I)
What will be an ideal response?
Mathematics