Solve the inequality.
? x + 1 or 
- 1 > 
A. (-?, -4] ? [20, ?)
B. (-?, 6] ? [20, ?)
C. (-?, -4) ? (20, ?)
D. [20, ?)
Answer: A
Mathematics
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Estimate the magnitude of the error involved in using the sum of the first four terms to approximate the sum of the entire series.
A. 3.63 × 10-3 B. 1.81 × 10-4 C. 1.12 × 10-3 D. 3.30 × 10-4
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Find the derivative.s = t7 tan t - 
A. 
= 7t6 sec2 t - 
B. 
= t7 sec2 t + 7t6 tan t - 
C. 
= t7 sec t tan t + 7t6 tan t - 
D. 
= - t7 sec2 t + 7t6 tan t + 
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Find the limit.
A. Does not exist B. -4 C. 4 D. 0
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Find the quotient.(40x8 + 30x5 - 10x3) ÷ (-5x3)
A. -8x5 + 30x5 - 10x3 B. -8x5 - 6x2 + 2 C. 40x5 + 30x2 - 10 D. -8x8 - 6x5 + 2x3
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