Perform the indicated operations. Write the answer in the form a + bj.
+ 
- 2j
A. 3 + 9j
B. -3 + 13j
C. -3 + 9j
D. -3 - 9j
Answer: C
Mathematics
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A. 3(z - 4) B. 4(z - 3) C. 3(z + 4) D. 3(z - 12)
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Find the product or quotient.
? 
A. 
B. 
C. 
p
D. 
p
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Find the equation of the least squares line.Managers rate employees according to job performance and attitude. The results for several randomly selected employees are given below. 
A. y = 2.81 + 1.35x B. y = -47.3 + 2.02x C. y = 11.7 + 1.02x D. y = 92.3 - 0.669x
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Find the slope of the line.x = 5
A. m = - 5 B. m = 5 C. m = 0 D. undefined slope
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