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Pls Answer Quickly! Pls show work so that I can understand
asked
Aug 16, 2022
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Pls Answer Quickly! Pls show work so that I can understand
Mathematics
college
JohannesAndersson
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1
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Answer:
2084, 1.1111
Explanation:
Q1
Given GP
4, -20, 100,...
Common ratio is:
r = -20/4 = 100/-20 = -5
Sum of 5 terms:
S₅ = 4( (-5)⁵ - 1)/(-5 - 1) = 2084
Q2
Given GP
1, 1/10, 1/100, ...
Common ratio is:
r = 1/10 : 1 = 1/100 : 1/10 = 1/10
Sum of 5 terms:
S₅ = 1*((1/10)⁵ - 1)/((1/10 - 1) = 1.1111
Roma
answered
Aug 21, 2022
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Roma
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