Provide an appropriate response.Decide whether the expression is positive, negative, or zero. 
A. Zero
B. Negative
C. Positive
Answer: A
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Find the center of mass of a thin plate covering the given region with the given density function.The region bounded by the curves y = ± 
and the lines x = 1 and x = 9, with density ?(x) = 
A. 
= 2, 
= 0
B. 
= 5, 
= 0
C. 
= 4, 
= 0
D. 
= 3, 
= 0
Solve the equation.4x = 256
A. {5} B. {64} C. {4} D. {3}
Simplify the expression by combining like terms.2y - y - 9y
A. -8y B. -7y C. -6y D. -7y - y
Test the graph of the following equation for symmetry with respect to
the polar axis, and the pole. r = -12 - 4sin (2q)
A) The graph is symmetric with respect to
only.
B) The graph is symmetric with respect to the polar axis only.
C) The graph is symmetric with respect to the pole only.
D) The graph is symmetric with respect to all three.
E) The graph has no symmetries.