Find the indicated term for the geometric sequence with the first term a1 and common ratio r.Find a6 when a1 = 4, r = 3

A. a6 = 972 
B. a6 = 
C. a6 = 243 
D. a6 = 248,832 


Answer: A

Mathematics

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Solve the problem.Find the centroid of a hemispherical shell having outer radius 9 and inner radius 3 if the density varies as the square of the distance from the base.

A.  = 0,  = 0,  = 
B.  = 0,  = 0,  = 
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A.

B.

C.

D.

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Use De Morgan's laws to write the negation of the statement.It is Saturday and it is not raining.

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