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3 years ago

Pls Answer Quickly! Pls show work so that I can understand

Mathematics

2 answers:

xeze [42]3 years ago

8 0

Answer:

2084, 1.1111

Step-by-step explanation:

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

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

Inessa [10]3 years ago

7 0

Answer:

2500

Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

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