Find the dot product v ? w.v = 
i - 8j,
w = i - j
A. 13
B. 
+ 8
C. 
- 8
D. -13
Answer: B
Mathematics
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Use DeMoivre’s theorem to find the indicated roots of the complex number.
Square roots of 
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Identify the open intervals where the function is changing as requested.Increasing
A. (-3, ?) B. (-2, ?) C. (-3, 3) D. (-2, 2)
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Determine the equation of the given line, as well as the slope of the line. If the slope is undefined, state this.
A. y = x - 8, m = 1 B. y = -4, m = 0 C. x = -4, m = 0 D. y = x - 4, m: undefined
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Combine.7
+ 
- 1
A. 6
B. 5
C. 6
D. 4
Mathematics