Find the equation that the given graph represents.
A. f(x) = x3 - 4x2 + 20x
B. f(x) = -x3 + 20x
C. f(x) = -x3 + 4x2 - 9
D. f(x) = x3 + 9x
Answer: B
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Provide an appropriate response.Find the second derivative of the the function 
A. 
B. 
C. 
D. 
Find the center of mass of a thin plate covering the given region with the given density function.The region enclosed by the parabolas y = 32 - x2 and y = x2, with density ?(x) = x2
A. 
= 0, 
= 16
B. 
= 0, 
= 32
C. 
= 0, 
= 
D. 
= 16, 
= 0
Translate the verbal rule into a symbolic rule using x as the input variable and y as the output variable.The output is four less than the input.
A. x ? 4 B. y = x - 4 C. y = 4 - x D. y ? x - 4
Find the approximate circumference of the circle. Use 3.14 for ?.Round to the nearest hundredth.
A. 37.68 cm B. 9.42 cm C. 28.26 cm D. 18.84 cm