Solve the inequality. Express your answer using interval notation.|x + 2| < 0

A. (2, ?)
B. (-?, -2)
C. no solution
D. (2, -2)

Answer: C

Mathematics

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Find an expression equivalent to the given expression. sinh (x4 - 4x)

A. cosh (x4 - 4x) B. (4x3 - 4) cosh (x4 - 4x) C. (4x3 - 4) sinh (x4 - 4x) D. (-4x3) cosh (x4 - 4x)

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Change the fraction or mixed number into an equivalent decimal. Use bar notation to write repeating decimals. - 

A. -0.
B. -0.8
C. -0.
D. -0.8

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Use the ratio test to determine if the series converges or diverges.

A. Diverges B. Converges

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Find a rectangular equation for the plane curve defined by the parametric equations.x = 5 cos t, y = -2 sin t; 0 ? t ? 2?

A. 4x2 - 25y2 = 100; x ? 5
B. 4x2 + 25y2 = 1; -  ? x ? 
C. 4x2 - 25y2 = 1; x ? 
D. 4x2 + 25y2 = 100; -5 ? x ? 5

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Mathematics