Question

my first number is -2 and my fifth number 26 whats my third number

Answer 1

Answer:

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!

1st term = a

2nd term = b

a, b, 26, 40 is the sequence

The first differences are

b-a, 26-b, 40-26

the 2nd differences are 4, so

(26 - b) - (b-a) = 4

14 - (26 - b) = 4

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14 - 26 + b = 4

-12 + b = 4

b = 16

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(26 - b) - (b-a) = 4

(26 - 16) - (16 - a) = 4

10 - 16 + a = 4

-6 + a = 4

a = 10

Answer 2

Answer:

26-2

24

The third number is 24