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Fanduekisses
 one year ago
USE SUMMATION NOTATION TO WRITE THE SUM... pls help!
Fanduekisses
 one year ago
USE SUMMATION NOTATION TO WRITE THE SUM... pls help!

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Fanduekisses
 one year ago
Best ResponseYou've already chosen the best response.0\[\sum_{n=1}^{??} 10(3)^{n1}\]

Fanduekisses
 one year ago
Best ResponseYou've already chosen the best response.0idk, I thought setting 7290 = 10(3)^n1 would help but idk...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh you need the upper limit right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[7290=10\times 3^{n1}\] solve for \(n\) via \[279=3^{n1}\] then just guess

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0find a power of 3 that gives \(729\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oops typo there \[729=3^{n1}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\(3^8=6561\) too big try a smaller one

Fanduekisses
 one year ago
Best ResponseYou've already chosen the best response.0the bases have to be the same right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you are thinking too hard use a calculator \[3^2=9\\ 3^3=27\\ 3^4=81\\ 3^5=...\] keep going until you get it, it will be soon

Fanduekisses
 one year ago
Best ResponseYou've already chosen the best response.0that's why the upper limit is 7

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok so that makes your upper limit 7 i guess
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