Find the nth term and the indicated term of the arithmetic sequence whose initial term, a, and common difference, d, are given.a = 9; d = -9an = ?; a13 = ?
A. an = 18 - 9n; a13 = -54
B. an = 18 + 9n; a13 = -99
C. an = 9 - 9n; a13 = -99
D. an = 18 - 9n; a13 = -99
Answer: D
Mathematics
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- 
= 1
A. y + 1 = 
(x - 4), y + 1 = - 
(x - 4)
B. y + 1 = 
(x - 4), y + 1 = - 
(x - 4)
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(x + 1), y - 4 = - 
(x + 1)
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(x + 1)
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A. 
B. 
C. 
D. 
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Rwhere R is the parallelogram bounded by the lines 
A. 
B. 
C. 
D. 
Mathematics