Solve the inequality.x2 + 2x ? 0
A. (-?, -2] or [0, ?)
B. [0, 2]
C. [-2, 0]
D. (-?, 0] or [2, ?)
Answer: C
Mathematics
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where x and y are in astronomical units (an astronomical unit is 93,000,000 miles). Sketch the graph of the comet.
A. 
B. 
C. 
D. 
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Write the equation as an equivalent exponential equation.ln(x) = -8
A. ln(-8) = x B. ex = -8 C. e-8 = x D. e8 = x
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Find the common difference,d, of the given arithmetic sequence.5, 9, 13, 17, ...
A. 12 B. 4 C. -4
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Find the area of the surface.
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Mathematics