Write the expression in the standard form a + bi.
A. 
- 
i
B. 
- 
i
C. 
+ 
i
D. 
+ 
i
Answer: C
Mathematics
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Find the exact value of the expression.cot-1
A. 
B. 
C. 
D. 
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Multiply.(3x3 + 7)(3x3 - 7)
A. 9x2 + 42x - 49 B. 9x6 - 42x - 49 C. 9x6 - 49 D. 9x3 - 49
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Solve the problem.Use the comparison line graph to determine how many more hours David needed to prepare for Test 4 than Jennifer.
A. 3 B. 0 C. 1 D. 2
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Find the distance between the two given points.(-5, 2) and (1, 4)
A. 32
B. 2
C. 4
D. 32
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