anonymous
  • anonymous
Find an explicit rule for the nth term of a geometric sequence where the second and fifth terms are -12 and 768, respectively. an = 3 • (-4)n + 1 an = 3 • 4n - 1 an = 3 • (-4)n - 1 an = 3 • 4n
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
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.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
As we know Un=Up.r^n-p right?
misssunshinexxoxo
  • misssunshinexxoxo
Which do you believe it is?
anonymous
  • anonymous
honestly i have no clue how to do this

Looking for something else?

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

More answers

misssunshinexxoxo
  • misssunshinexxoxo
T(n)=T(1)r^(n-1) => T(1)r=36--------(1) T(1)r^4=2304--------(2) (2)/(1)=> r^3=2304/36=> r=4 From (1), get T(1)*4=36=> T(1)=9 => the general term T(n)=9*4^(n-1)
anonymous
  • anonymous
Hey are you sure you have written the choices correctly ?
anonymous
  • anonymous
can i just plug them in and see which one gives me the 2nd as -12 and the 5th as 768
anonymous
  • anonymous
yea
anonymous
  • anonymous
Well yea thats the only way to solve but none works
anonymous
  • anonymous
@misssunshinexxoxo which choice would it be?
misssunshinexxoxo
  • misssunshinexxoxo
My best answer would be an = 3 • (-4)n - 1 should be good for this
anonymous
  • anonymous
Wait r=-4 and not 4

Looking for something else?

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