Solve the problem.If PN = 
PN-1 and P4 = 108, then P6 =
A. 324.
B. 4.
C. 12.
D. 36.
E. none of these
Answer: C
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Solve the problem.Find the center of mass of the solid enclosed between the cone with equation 
and the plane with equation 
if the density at any point is proportional to the distance from that point to the plane 
.
A. (
, 
, 
) = 
B. (
, 
, 
) = 
C. (
, 
, 
) = 
D. (
, 
, 
) = 
Use the graph of the rational function f(x) to complete the statement.As x?-?, f(x)? 
. 
A. +? B. -? C. -1 D. 0
Solve the problem.Consider all rectangles with an area of 256 cm2. Let x be the length of one side of such a rectangle. Express the perimeter as a function of x and determine the dimensions of the rectangle that has the least perimeter.
A. P(x) = 2x + 
; 16 cm × 16 cm
B. P(x) = 256x ; 8 cm × 32 cm
C. P(x) = x + 
; 16 cm × 16 cm
D. P(x) = 2x + 
; 4 cm × 64 cm
Solve.Jon has 848 points in his math class. He must have 80% of the 1300 points possible by the end of the term to receive credit for the class. What is the minimum number of additional points he must earn by the end of the term to receive credit for the class?
A. 452 points B. 678 points C. 192 points D. 1040 points