Find an explicit rule for the nth term of the sequence.The second and fifth terms of a geometric sequence are -24 and 1536, respectively.
A. an = 6 ? 4n
B. an = 6 ? (-4)n-1
C. an = 6 ? (-4)n+1
D. an = 6 ? 4n-1
Answer: B
Mathematics
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Find the moment or center of mass of the wire, as indicated.Find the center of mass of a wire of constant density that lies along the line 
from x = 0 to 
A. 
= 9, 
= 9
B. 
= 
, 
= 
C. 
= 9, 
= 0
D. 
= 3, 
= 3
Mathematics
Factor, if possible.12x4 + 25x2+ 12
A. (12x2 + 4)(x2 + 3) B. Prime C. (3x2 - 4)(4x2 - 3) D. (3x2 + 4)(4x2 + 3)
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Use the commutative property of addition to write an equivalent algebraic expression.x + 9
A. 9 + x B. x + 9 C. x9 D. 9x
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Find csc ? if 
and 
.
?
A. 
B. 
C. 
D. 
E. 
Mathematics