Find the center of mass of a thin plate of constant density covering the given region.The region bounded by the x-axis and the curve y = 7sin x, 0 ? x ? ?
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= ?, 
= 
D. 
= 
, 
= 
Answer: B
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Sketch the curve.
+ 
= 1
A. 
B. 
C. 
D. 
Answer the question.True or False: The graph of the equation 9x - 15y = 30 goes through 
A. False B. True
Find a rational function that satisfies the given conditions. Answers may vary, but try to give the simplest answer possible.Vertical asymptote x = 7, hole at x = -2, x-intercept (4, 0), and end behavior model q(x) = 2.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Graph the function using its vertex, axis of symmetry, and intercepts.f(x) = x2 - 2x - 8 
A. vertex (-1, 9)
intercepts (-4, 0), (2, 0), (0, 8)
B. vertex (1, 9)
intercepts (4, 0), (- 2, 0), (0, 8)
C. vertex (-1, -9)
intercepts (-4, 0), (2, 0), (0, -8)
D. vertex (1, -9)
intercepts (4, 0), (- 2, 0), (0, -8)