Evaluate the integral.
dx
A. - 
ln
+ C
B. - 
ln
+ C
C. 
ln
+ C
D. - 
ln
+ C
Answer: A
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Find the centroid of the thin plate bounded by the graphs of the given functions. Use ? = 1 and M = area of the region covered by the plate.g(x) = x2 and f(x) = x + 2
A. 
= 
, 
= 2
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 2, 
= 
Use a graphing calculator to plot the data and find the quadratic function of best fit.A rock is dropped from a tall building and its distance (in feet) below the point of release is recorded as accurately as possible at various times after the moment of release. The results are shown in the table. Find the regression equation of the best model. 
A. y = 15.95x2 B. y = -74.9 + 290 lnx C. y = - 148.4 + 112x D. y = 13.0 e0.686x
Convert the rectangular coordinates of the point to polar coordinates (r, ?) with r > 0 and 0 ? ? < 2?.(-6, 0)
A. (6, ?)
B. (6, 0)
C. 
D. 
Find an equation for the line with the given properties.Parallel to the line 5x - y = 4; containing the point (0, 0)
A. y = 5x
B. y = 
x
C. y = - 
x + 4
D. y = - 
x