Please help
1. Find the S7 for the geometric series -9+1.8-0.36+0.072- ...
2. Find the 7t...
Mathematics, 12.03.2020 04:56 kaylanweston
Please help
1. Find the S7 for the geometric series -9+1.8-0.36+0.072- ...
2. Find the 7th term of the geometric sequence -4, 12, -36, 108, -324..
3. Find the 22th term in the arithmetic sequence -5,-9,-13,-17,-21..
4.Expand (x-3y)^5
5.Sergio reads 2 pages of a book the first night. He reads 3.5 pages the second night. If he continues to read 1.5 pages more than the previous night, how many total pages will he have read after 7 days.
6. Anders` father increases his allowance each on his birthday. His allowance started at 5$ a week when he was 8 and $12.50 a week when he was 11. What will Andres' allowance be when he is 14.
7. Determine whether the sequence -1,7,15,23,31,.. is an arithmetic, geometric, or neither. If so, find the common difference or ratio and the next three terms in the sequence.
8.An infinite geometric series has a sum of 100 and a common ration of 4/5. What is the first term in the series?
Answers: 2
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