Add or subtract as indicated and write the result in standard form.(7 - 8i) + (8 + 6i)
A. -1 + 14i
B. 15 + 2i
C. 15 - 2i
D. -15 + 2i
Answer: C
Mathematics
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A. True B. False
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Provide an appropriate response.A linear model is obtained for the following set of data. 
For what range of x-values would it be reasonable to use the model to predict the y-value corresponding to a given x-value? Why?
What will be an ideal response?
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Solve the problem.Find cos 
, given that sec ? = 4 and ? terminates in 0
A. 
B. 
C. 
D. 
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Describe the behavior of the function below as x approaches zero.
?
?
A. f? -? as x ? 0. B. f ? -1 as x ? 0. C. f ? 1 as x ? 0. D. f ? +? as x ? 0. E. f ? 0 as x ? 0.
Mathematics