Find the fifth term and the nth term of the geometric sequence whose initial term, a, and common ratio, r, are given.a = 6; r = -5
A. a5 = -750; an = 6 ? (-5)n-1
B. a5 = 3750; an = 6 ? (-5)n
C. a5 = -750; an = 6 ? (-5)n
D. a5 = 3750; an = 6 ? (-5)n-1
Answer: D
Mathematics
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?
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B. ?
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A. 17
B. -17
C. 7
D. 
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Find the product.(9p - 1)(81p2 + 9p + 1)
A. 729p3 + 1 B. 81p3 - 1 C. 729p3 - 1 D. 729p3 + 90p2 - 1
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Decide whether the argument is valid or invalid, and give the form (of valid or invalid argument) that applies.If the bell rings, then we answer the door.
We answer the door.
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Mathematics