109.9
![subject](/tpl/images/cats/mat.png)
Mathematics, 03.12.2020 19:00 LilyFlower227
For a geometric sequence that has r=-4/5 and Uā = -1280, find the 20th term.
-56.3
109.9
-88
70.4
Given than two terms of an arithmetic sequence are Uā
=-3.7 and Uāā
=-52.3 , find the value of the 19th term *
-71.74
-664
52
Other
For the following infinite series, find the indicated sum 1/5 + 8/15 +13/15 + ... Sā *
42/5
-42/5
-3/15
42/15
Other
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Answers: 1
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You know the right answer?
For a geometric sequence that has r=-4/5 and Uā = -1280, find the 20th term.
-56.3
109.9
109.9
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