Determine whether the sequence is geometric.an = -(1.07)n-1
A. Geometric
B. Not geometric
Answer: A
Mathematics
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Solve the problem.Find the centroid of a hemispherical shell having outer radius 10 and inner radius 5 if the density is constant.
A. 
= 0, 
= 0, 
= 
B. 
= 0, 
= 0, 
= 
C. 
= 0, 
= 0, 
= 
D. 
= 0, 
= 0, 
= 
Mathematics
Solve the problem.Find the number of ways of arranging 8 distinct items in a circle.
A. 5040 B. 20,160 C. 140,320 D. 720
Mathematics
Perform the indicated operations and simplify.Let A = 
, B = 
, and C = 
. Find C(A - B).
A. 
B. 
C. 
D. 
Mathematics
Find the value of the determinant.
A. 19 B. -9 C. 21 D. -21
Mathematics