Solve the linear inequality. Express the solution in set-builder notation.-2(2x + 18) < -6x - 18

A. {x|x < -6}
B. {x|x > -6}
C. {x|x > 9}
D. {x|x < 9}

Answer: D

Mathematics

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A.  (2, 6]
 
B.  (2, 6)
 
C.  [2, 6)
 
D.  [2, 6]
 

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Test the equation for symmetry with respect to the given axis, line, or pole.r = 6 + 2 cos ?; the pole

A.

May or may not be symmetric with respect to the pole 

B. Symmetric with respect to the pole

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Simplify.2 

A. 0
B.
C.
D.

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