Solve the system of equations.- 
x + 4y - 2z = -103x + 
y + z = 15 x - 3y + 5z = 5
A. (6, -6, -1)
B. (9, -3, -1)
C. (6, -3, -2)
D. (9, -6, -2)
Answer: C
Mathematics
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Use DeMoivre's Theorem to write the expression in rectangular form.
4
A. 
+ 
i
B. 81i
C. 
+ 
i
D. 
+ 
i
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Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.4x2 + 5x - 21
A. (4x + 3)(x - 7) B. (4x - 7)(x + 3) C. (4x + 7)(x - 3) D. prime
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Find the product.(-0.5)(-19.7)
A. 20.2 B. -19.2 C. 9.85 D. -20.2
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Solve the equation.4-x = 
A. 
B. 
C. {2}
D. {-2}
Mathematics