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andreanelson5788
26.11.2019 •
Mathematics
Sarah and ethan are plotting points on a coordinate grid. sarah plots the point a(–2, –3) and ethan plots the point b(1, 2). what is the distance between the two points? round your answer to the nearest tenth.
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Ответ:
Step-by-step explanation: 5.8 would be the answer to the nearest tenth
Ответ:
The sum of next 8 terms is 292,968
Step-by-step explanation:
Here, the sequence is 3, 15, 75 , ...
Since the given term is in geometric progression, so
And here, r = 15/ 3 = 5
So, a = 3
r = 5
n = 8
So, sum of n terms of G. P![S_n= \frac{a(r^{n} -1)}{(r-1)}](/tpl/images/0356/4595/75cff.png)
or,![S_8= \frac{3(5^{8} -1)}{(5-1)}](/tpl/images/0356/4595/13801.png)
= 292,968
Hence, the sum of next 8 terms is 292,968.