Question

WILL FAN AND MEDAL


Which of the following sequences are not geometric?
choose all that apply
A1,1,2,3,5,8,13,21
B 1,4,9,16,25,36
C -4,-2,-1,-0.5,-0.25,-0.125
D 2,10,50,250,1250

Answer 1

geometric sequence is one that decreses or increases by certain number (not on certain number)
b(n)=b(1)*q^(n-1)

Answer 2

in your choices 2 10 50 250 1250 and -4 -2 -1 -0.5 -0.25 -0.125 are geometric sequences.

Answer 3

So a and b are not geometric

Answer 4

yes.

Answer 5

geometric sequence in more easy words is :b, bn, bn^2, bn^3, ...
arithmetic is : a, a+n, a+2n, a+3n, ...

Answer 6

Ok thanks

Answer 7

your welcome