What is the missing number in the sequence 1-16- -100-169?

Answer 1

49

The sequence is the squares of numbers that increase by 3 each time:

1² = 1

(1 + 3 )² = 4² = 16

(4 + 3)² = 7² = 49

(7 + 3)² = 10² = 100

(10 + 3)² = 13² = 169

Answer 2

49

1+x^2=16

(1 + 3 )² = 4² which= 16

1+3=4

4+3^2=7^2

7^2=the missing number

7^2=49

therefore the missing number is 49

therefore (4 + 3)² = 7² = 49 is true.

Answer 3

49

Answer 4

minecraft

Answer 5

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