# Math

posted by .

Need help I have to find a pattern for

8, -1, 2, -1

I know the answer is 1/3 but have no idea how I get there...I am trying to multiply each by -1/2 but I can't get the 1/3 at the end for some reason

and I have the similar problem as well:
8, -4, 2, -1

## Similar Questions

1. ### math

I have finished all my homework but I have one problem that I cannot answer. The teacher said that no one could probably answer this. Can someone help?

I am having a hard time understanding recprocial with fractions I would like to find a web site to help me understand this better I have a problem that is need to know if i have done it right the question is find the reciprocial of …
3. ### Maaaath

6/x + 6/x-5 = 1 I got to x^2 -17x +5 = 0 But I have no idea if that is right?
4. ### Math

8*2sq+7*(4+1)= ? Can someone explain to me what to after the parenthesis?
5. ### math

I am trying to figure out a lettern pattern and what comes next A,Y,C,W,__ __ ___ I need to explain the rule for this pattern but I am having a hard time
6. ### Bus

I am trying to find useful informations on "whether its a good idea to open a Pizza Hut business in Winnipeg?
7. ### math

I am trying to find a pattern in these numbers. I have looked for what feels like hours, and can't find it. -3,-9,-14,-42,-47,-141
8. ### Math

I have (3.14) (19.36) (12) and i am trying to find out how to correctly multiply them Also i am trying to find value of cylinders
9. ### History

I have a paper I must do and have been trying all summer to finish. I have read the book The Story of Sacagawea and now what I need to do is write what the main idea/topic is ( which I know is Sacagawea) but then I have to write a …
10. ### Math/fractions

I need help with subtracting fractions I have no idea if I'm doing it right. Please help. 3/7-9/21 Fist you find a least common denominator, right?

More Similar Questions