anonymous
  • anonymous
WHAT did I do wrong here? :( What is the 9th term of the geometric sequence where a1 = -6 and a6 = -6,144? First term: -6 Ratio: -1024 N= 9
Mathematics
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this
and thousands of other questions

anonymous
  • anonymous
Did I mess up on the ratio part?
hartnn
  • hartnn
yes :P
anonymous
  • anonymous
LOL let me revise

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

hartnn
  • hartnn
can i tell you how can you get it ?
anonymous
  • anonymous
0.000097
anonymous
  • anonymous
-6 divided by (-6144)??
anonymous
  • anonymous
i did this one for you
hartnn
  • hartnn
no.... common ratio = next term/ previous term a1 and a6 are not consecutive terms
anonymous
  • anonymous
wait huh??? then what is???
hartnn
  • hartnn
you'd find common ratio =r by, an = a1 r^{n-1} here, and only for this, n=6 a1=-6 always an=a6 =-6144
anonymous
  • anonymous
so n = 6 temporarily?
hartnn
  • hartnn
yes, only to find the value of 'r'
anonymous
  • anonymous
ok:)
anonymous
  • anonymous
http://www.basic-mathematics.com/geometric-sequence-calculator.html
anonymous
  • anonymous
huh???????????/ ^
hartnn
  • hartnn
don't use that.
anonymous
  • anonymous
Oh?
hartnn
  • hartnn
plug in values in the formula and use other calculator or google.
anonymous
  • anonymous
okay
anonymous
  • anonymous
I don't know how to get this
hartnn
  • hartnn
what u got after plugging in ?
anonymous
  • anonymous
First term: 625 Ratio: -6144 N= 9
anonymous
  • anonymous
I got numbers that were entirely off
anonymous
  • anonymous
in the 8 millions
anonymous
  • anonymous
8 thousands rather*
anonymous
  • anonymous
= -393,216
hartnn
  • hartnn
ratio is not -6144 ratio = r is what you have to find
anonymous
  • anonymous
Really?????
anonymous
  • anonymous
ughhhh oh my god
hartnn
  • hartnn
|dw:1363206281770:dw| did you get this step ?
anonymous
  • anonymous
no
hartnn
  • hartnn
a1=-6 n=6 an=a6=-6144
anonymous
  • anonymous
ohhhh yes yes!!!
anonymous
  • anonymous
what do i do after the -6144
hartnn
  • hartnn
you mean you want next step ? or right side of same step ?
anonymous
  • anonymous
the next step please:)
anonymous
  • anonymous
my notes are progressing!!
hartnn
  • hartnn
|dw:1363206708125:dw| got this ?
anonymous
  • anonymous
-6144/ -6 ?
anonymous
  • anonymous
what is that loop thing?
hartnn
  • hartnn
on right side ? its 'r' r^5
anonymous
  • anonymous
it looks like a deformed male genital
hartnn
  • hartnn
lol :P
anonymous
  • anonymous
ohhhhhhhh!!!!!!! R
hartnn
  • hartnn
yes, r = common ratio
anonymous
  • anonymous
got the step:)
hartnn
  • hartnn
can you find 'r' from that ?
anonymous
  • anonymous
yes let me try
anonymous
  • anonymous
1024^5 = 1.1258999e+15
hartnn
  • hartnn
its 1024 =r^5 not 1024^5
anonymous
  • anonymous
huh?
hartnn
  • hartnn
\(1024 =r^5 \) taking 5th root on both sides, \(\large r= \sqrt[5]{1024}=..?\)
anonymous
  • anonymous
let me see
anonymous
  • anonymous
i dont know
hartnn
  • hartnn
try this : \(r^5=1024=2^{10} \\ r^5= (2^2)^5 \implies r=2^2=4\)
hartnn
  • hartnn
got how r=4 ?
anonymous
  • anonymous
yes
hartnn
  • hartnn
good! so, now we have r=4 a1=-6 n=9 find an ?
anonymous
  • anonymous
no
hartnn
  • hartnn
you can use that link.... or the formula
anonymous
  • anonymous
okay:) Ratio = 4?
hartnn
  • hartnn
yes, common ratio = r= 4 is what we found out.
anonymous
  • anonymous
3603000625
hartnn
  • hartnn
no...what values you put ?
hartnn
  • hartnn
i got : The 9th term is -393216
anonymous
  • anonymous
I made a few minor errors but i fixed it
hartnn
  • hartnn
great! any more doubts ?
hartnn
  • hartnn
phew! this took an hour!
anonymous
  • anonymous
hahahh so so sorry!!!!!!!!!
anonymous
  • anonymous
you are literally THE BEST
hartnn
  • hartnn
not really, but i'll take the compliment ;) Thanks :D

Looking for something else?

Not the answer you are looking for? Search for more explanations.