Find the series' radius of convergence.
A. 18
B. ?, for all x
C. 9
D. 0
Answer: C
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Find the volume by using polar coordinates.The region under the surface 
, and bounded by the planes 
and 
and the cylinder 
A. 
B. 
C. 
D. 
Decide whether the statement is believable, given the precision with which it is stated. Last year, the company made $545.2 in profits.
A. Not believable at that precision B. Believable
Solve.To fit a 45 degree connection, a plumber can approximate the diagonal length by multiplying the offset length by 1.414. Find the diagonal length of a 45 degree fitting if the offset length is 
inches. Express the answer as a fraction to the nearest 
of an inch.
A. 
or 
B. 
or 
C. 
or 
D. 
or 
Determine the standard equation of the ellipse described.Focus at (-7, 0); vertices at (-8, 0) and (8, 0).
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1