Find ( f ? g )(x) and (g ? f )(x) , given that f (x) = x ? 3x2 and g (x) = x3 .
What will be an ideal response?
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Calculate the flux of the field F across the closed plane curve C.F = yi - xj; the curve C is the circle (x - 9)2 + (y - 9)2 = 121
A. -198 B. 0 C. 396 D. 198
Multiply.(-0.6x4)(-0.9x5)
A. 0.54x20 B. -0.54x9 C. -0.54x20 D. 0.54x9
Solve. Assume the exercise describes a linear relationship.The average value of a certain type of automobile was $21,000 in 2007 and depreciated to $14,940 in 2012. Let y be the average value of the automobile in the year x, where x = 0 represents 2007. Write a linear equation that models the value of the automobile in terms of the year x.
A. y = - 
x - 14940
B. y = -1212x + 21,000
C. y = -1212x + 14,940
D. y = -1212x + 8880
Find all square roots of the number.324
A. 19, -19 B. 18, -18 C. 20, -20 D. 36, -36