Find a formula for the inverse of the function described below.A size 56 dress in Country C is size 20 in Country D. A function that converts dress sizes in Country C to those in Country D is 
A. f-1(x) = x + 8
B. f-1(x) = 2(x - 8)
C. f-1(x) = 2x + 8
D. f-1(x) = 2(x + 8)
Answer: D
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Translate the verbal phrase into a mathematical expression. Use x to represent the unknown number.The difference between a number and 24.6
A. x + 24.6 B. 24.6x C. x - 24.6 D. 24.6
Use a grapher to graph the function.The displacement y of the end of a gear tooth is given by 
Sketch the graph of two cycles of y as a function of t in seconds. Label the point on the horizontal axis which represents the end of the second cycle.
A. 
B. 
C. 
D. 
Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = 
, y = 3, x = 0
A. 
?
B. 18?
C. 
?
D. 9?
Find the average value of the function over the region.f(?, ?, ?) = ? over the solid ball ? ? 6
A. 
B. 
C. 6?
D. 6