For you it wasnt hard. Instead of making such pointless posts let us ponder and be afraid of what lies ahead, and if you dont want to, simply ignore these posts.
I thought the recycling one was okay. I talked about centrifuge and how it removed many pollutants etc. that other processes couldnt and therefore allowed water to be reused in a number of ways.
the pic was definitely SE. The lake that was behind the front region of the image was that just SE of the rocky section that stuck out on the main island. Def. SE
I dont mind Frontline at all. Ive found each episode have their funny bits but i guess when a text is branded an 'English text' we instinctively disgust it. But personally, im enjoying it a lot more than all the other texts ive done this year(besides pardoners tale etc.)
HI everyone,
'If in a geometric sequence the sum of the second and third terms is 20 and the sum of the fourth and fifth terms is 320, find the common ratio and the first term. Assume that the common ratio is positive'.
the answers are: r=4 and a=1
I've tried using simultaneous equations...