SOLUTION: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 d. "Diagonals" are parallel to an edge. For example, 4, 7,

Algebra ->  Sequences-and-series -> SOLUTION: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 d. "Diagonals" are parallel to an edge. For example, 4, 7,      Log On


   

Question 850851: 1
2 3 4
5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25
d. "Diagonals" are parallel to an edge. For example, 4, 7, 12, 19.....is a diagonal. What are its next two terms of this diagonal? What is its term in the nth row for this diagonal? Note: This is not the nth term of the diagonal.

e. Examine the sequence in the columns. For example, center column is 1, 3, 7, 13, 21,.... What are the nest two terms? What is the center term in the nth row?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
d) 4, 7, 12, 19 add 3 5 7
next add 9 11
so we get
28 39
e)1, 3, 7, 13, 21
2 4 6 8 next add 10 then add 12
so we get
31 43