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
= 0
Answer: B
Mathematics
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Simplify.
÷ 
A. 
B. 
C. 
D. 
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Evaluate.
A. Not a real number B. 6 C. 7 D. 18
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Find the sum.970 + 886
A. 1746 B. 1856 C. 1846 D. 1756
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Use a calculator to evaluate the expression. Round the answer to three decimal places.(-0.55)-2
A. 0.303 B. -3.306 C. 3.306 D. -0.302
Mathematics