Add or subtract as indicated. Express your answer in standard form.(-6 - 4i) + (2 - 5i)
A. 4 + 9i
B. -4 + 9i
C. -4 - 9i
D. 4 - 9i
Answer: C
Mathematics
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Evaluate the following expression using a unit circle.cos 2?
A. -1
B. 
C. 1
D. 0
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Find the derivative of the function 
by using the rules of differentiation.
?
What will be an ideal response?
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Identify the following as an equation or an expression.x + 14x - 9
A. Equation B. Expression
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Solve the quadratic equation by any method.x2 + 4x - 96 = 0
A. -12 ± 8
B. -8 ± i
C. -12, 8
D. 12, 8
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