Solve the rational inequality. Express the solution in interval notation.
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A. (-?, -31) ? (-1, 5)
B. (-?, -31) ? (5, ?)
C. (-31, -1) ? (-1, 5)
D. (-31, -1) ? (5, ?)
Answer: D
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Use DeMoivre's Theorem to find the indicated power of the complex number. Write the answer in rectangular form.
4
A. 256i
B. 128 + 128
i
C. 128
+ 128i
D. 128 + 128i
Solve the formula for the specified letter.
+ 
= c for b
A. b = ac - 
B. b = 
- a
C. b = 
D. b = 
The following table shows the earnings for the Juarez family last year. Use this information to answer the question.MonthEarningsMonthEarningsJan.$1400July$1300Feb.$1150Aug.$2450Mar.$2950Sept.$2500Apr.$2300Oct.$2000May$1650Nov.$2350June$2700Dec.$2400What was the family's total income for the year?
A. $22,000 B. $25,150 C. $24,000 D. $23,750
Tell whether or not the relation is a function.{(3,-3), (3,3), (6,-2), (9,3), (12,-9)}
A. Yes B. No