22longgabriel 22longgabriel

19-04-2020
Mathematics

contestada

PreCalc help with sums. I will mark brainliest. (also can you explain WHY you got what answer you got? Thanks)

PreCalc help with sums I will mark brainliest also can you explain WHY you got what answer you got Thanks class=

Respuesta :

amna04352 amna04352

19-04-2020

Answer:

5.25

Step-by-step explanation:

a = 4.2

r = 1/5 = 0.2

Sum to infinity:

a/(1 - r)

4.2/(1 - 0.2)

4.2/0.8

21/4

5.25

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