SOLUTION: a) 18,10,6,4............. b)18,20,24,32.............. c) 7,13,24,25............. d) 4,5,7,11,19..........

Algebra ->  Sequences-and-series -> SOLUTION: a) 18,10,6,4............. b)18,20,24,32.............. c) 7,13,24,25............. d) 4,5,7,11,19..........      Log On


   

Question 885331: a) 18,10,6,4.............
b)18,20,24,32..............
c) 7,13,24,25.............
d) 4,5,7,11,19..........
Answer by richwmiller(17219) About Me  (Show Source):
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a)
18 -8 4 -2
10 -4 2 -2
6 -2 0
4 -2
2
The fifth term could be 2
b)
18 2 2 2
20 4 4 2
24 8 6
32 14
46
The fifth term could be 46
c)
7 6 5 -15
13 11 -10 -15
24 1 -25
25 -24
1
The fifth term could be 1
d)
4 1 1 1 1
5 2 2 2 1
7 4 4 3
11 8 7
19 15
34
The sixth term could be 34