Add or subtract as indicated. Express your answer in standard form.(11 + 
) + (-4 - 
)
A. 7 - 3i
B. 7 - 9i
C. 7 + 3i
D. 15 - 9i
Answer: A
Mathematics
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Find the exact value of the expression. Do not use a calculator.If tan ? = 11, find the exact value of cot 
.
A. 11
B. 12
C. 
D. 10
Mathematics
Solve the inequality, and graph the solution set.
< 0
A. (-?, -7)
B. (-?, -7) or (3, ?)
C. (-7, 3)
D. (3, ?)
Mathematics
Solve the problem.The table gives the change in producer price indexes.
Which has a greater absolute value, the change for apparel from January to June or from July to December?
A. July to December B. January to June
Mathematics
Perform the indicated operation and simplify if possible.
- 
A. 
B. 
C. 
D. 
Mathematics