Question

given the following sequence, find the missing term:
__, __, 33,__, -1

Answer 1

I must know is it supposed to be an ARITHMETIC or GEOMETRIC sequence ?

Answer 2

arthrimetic :3

Answer 3

this is what i have so far:
t5=a+d(n-1)
-1=a+d (5-1)
-1= a+d(4)
-1= a+4d

Answer 4

Well, between `33` and `-1` you know that

\(\normalsize\color{blue}{ 33~+2d~=-1}\) where ` d ` is the difference in the sequence.

So can you find the difference ?

Answer 5

that's the part where i don't get...

Answer 6

What you don't get? Do you get why I am getting \(\normalsize\color{black}{ 33+2d=-1}\) ?

Answer 7

no, i don't know how to get the difference

Answer 8

subtract 33 from both sides and divide both sides by 2 .

After you do this, d=? (you tell me)

Answer 9

d=-17

Answer 10

Yes.

Answer 11

So can you find the terms of the sequence ?

Answer 12

When you go one term back, you add 17, when you go one term forward you subtract 17.

OKAY ?

Answer 13

help me next solomon

Answer 14

....:P okay i guess

Answer 15

well, thank you for your help :)

Answer 16

Type your sequence after you get it, so that I can check it. alright ?

Answer 17

67,50,33,10,-1

Answer 18

you got a little error, 67, 50, 33, \(\normalsize\color{red}{ 16}\), -1

Answer 19

because 33 - 17 = 16 (and not 10)
Good job though for the 1st 2 numbers, and good luck !

Answer 20

oh whooops yea, i meant 17 :) lol

Answer 21

you meant 16:)

Answer 22

oh psht whatever it's all good now xP thankksss

Answer 23

yeah, btw do you live in the very south somewhere or taking a summer school ?

Answer 24

um why? i'm just taking this course online during the summer, yea

Answer 25

I am just wondering.

Answer 26

I'm not spying don't worry ;)