Question

1, 3, 4, 7, 8, 10 is this a geometric or an arithmetic series?

Answer 1

What is the definition of a geometric and an arithmetic series?

Answer 2

http://en.wikipedia.org/wiki/Geometric_series
http://en.wikipedia.org/wiki/Arithmetic_series

Answer 3

this is tough one, :)

Answer 4

is it neither?

Answer 5

that's what it looks like

Answer 6

Neither.

Answer 7

okay wht abt these othere ones?


0.3, 0.03, 0.003, ...
-4, -12, -36, -108, ...
-3, 6, -12, 24, -48, ...
-1, 2, -4, -8, 16, ...

Answer 8

Are you just posting homework?

Answer 9

first one think of as
\[\frac{3}{10},\frac{3}{100},\frac{3}{1000},...\]or as
\[\frac{3}{10},\frac{3}{10^2},\frac{3}{10^3},...\] to see that it is geometric

Answer 10

all geometric

Answer 11

No wait. This sequence is interesting.

Answer 12

Phi-antipalindromic numbers

Answer 13

http://www.youtube.com/watch?v=XZPpG9qPqgA

Answer 14

How did you realize that? :D

Answer 15

When it comes to numbers I know a few things ;)

Answer 16

im making sure my answers are right @noliec. I dont ask ppl to do my homework thers no benefit in it for me.

Answer 17

Then I apoligize gr12! :)

Answer 18

i have another question: If a geometric sequence has t4 = 3 and t8 = 243, find t11.

Answer 19

is term 11 positive or negative? or is it both?

Answer 20

and what's your answer to check? :)

Answer 21

my answer is 6561, but im unsure of if its positive or neagtive? cause you do to the fouth rot

Answer 22

?

Answer 23

I believe it's +ve.

Answer 24

yea thts wht i thought. one last question please? i absolutely have no idea how to solve this?
If 6, 6^x + 2, and 6^3x - 3 are the first three terms of a geometric sequence, what is the value of x?

Answer 25

if a, b and c are in geometric progression, what can we say for sure?

Answer 26

Btw it could be\( \pm \) for your other question.

Answer 27

okay, and wht abt the question i just asked.