Question

What is the next number in the following pattern?

1, 3, 7, 15, 31, , …


A. 65
B. 33
C. 63
D. 47

Answer 1

63

Answer 2

ok but can you explain

Answer 3

\[1\\3=1+2^1\\7=3+2^2\\15=7+2^3\\31=15+2^4\\?\\31+2^5=31+32=63\]

Answer 4

3 - 1= 2
7 -3 = 4
15 - 7 = 8
31 - 15 = 16
so we multiply by 2 ( 16/ 8 = 2) , 4/2 = 2
so 16 * 2 = 32 + 31 = 63

Answer 5

tro gve amood a medal

Answer 6

give and thx yall

Answer 7

wait one more

Answer 8

2, -3, 4, -5, _____
A. 3
B. 6
C. -5
D. 4
E. -6

Answer 9

\[a_{n+1}=2a_n+1\\a_1=1\]

Answer 10

so its -6

Answer 11

Tower of Hanoi

Answer 12

/???

Answer 13

it is the name of first question

for the second
2,3,4,5,6,7,8,... \[a_n=n+1\]
2,-3,4,-5,+6,-7,+8 \[a_n=(-1)^{n+1}(n+1)\]

Answer 14

itts -6

Answer 15

i mean 6

Answer 16

lol