Write the conjugate 
of the complex number z. Then find z
.z = 
- 
i
A. 
= 
+ 
i, z
= 
B. 
= 
+ 
i, z
= 
C. 
= 
+ 
i, z
= 
D. 
= 
+ 
i, z
= 
Answer: D
Mathematics
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Form a polynomial f(x) with real coefficients having the given degree and zeros.Degree: 4; zeros: -1, 2, and 1 - 2i.
A. f(x) = x4 - 3x3 - 3x2 + 7x + 6 B. f(x) = x4 - 3x3 + 5x2 - x - 10 C. f(x) = x4 - x3 + x2 + 9x - 10 D. f(x) = x4 - x3 + 3x2 - 5x - 10
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Solve the formula for the specified variable.A = P(1 + nr) for n
A. n = 
B. n = 
C. n = 
D. n = 
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Identify the figure.
A. ray 
B. line segment 
C. line 
D. ray 
Mathematics