Question

Which of the following sequences are geometric?

A. 0.25, 0.35, 0.45, 0.55, 0.65

B. 3, 18, 108, 648, 3,888

C. 6, 1, 1/6, 1/36, 1/216

D. 1, 1/2, 1/3, 1/4, 1/5

**choose ALL that apply!!

pls explain! thx :)

Answer 1

look at choice A

divide the second term by the first term

Answer 2

what do you get

Answer 3

i got 1.4

Answer 4

0.35/0.25=1.4

Answer 5

now divide the third number by the second number

Answer 6

0.45/0.35=1.285714286

Answer 7

is that the same as the last result

Answer 8

noo :/

Answer 9

so choice A isn't geometric

Answer 10

kk i see...

Answer 11

each term divided by its previous term must give you the same number everytime

Answer 12

B is right?? cuz its all multiplied by 6 act time?

Answer 13

**each not act lol

Answer 14

yep, B is definitely geometric

Answer 15

kk and so is C right?? i keep getting 1.66666666667

is C also geometric?

Answer 16

yep

Answer 17

kk and D is not right??

so my answers are B and C?

Answer 18

good

Answer 19

great! thanks :)