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ritez
 one year ago
Best ResponseYou've already chosen the best response.2a1 = 9 a2 = a1 + 2 = 11 a3 = a2 + 2 = 13 a4 = a3 + 2 = 15 . . . . . . . a12 = a11 + 2 = 31 this is recursive formula..

ritez
 one year ago
Best ResponseYou've already chosen the best response.2expicit formula is An = a1 + (n  1) d An = 9 + ( n  1) 2

ritez
 one year ago
Best ResponseYou've already chosen the best response.2in 12th row there are A12 = 9 + (12  11) 2 = 31 seats

SmokeysTheName
 one year ago
Best ResponseYou've already chosen the best response.0thank you can you help me on 3 more pleeease ? (:

SmokeysTheName
 one year ago
Best ResponseYou've already chosen the best response.0whatever is there thats what it is.

ritez
 one year ago
Best ResponseYou've already chosen the best response.2z2 is nothing it should be z^2.ok lets see its solution

ritez
 one year ago
Best ResponseYou've already chosen the best response.2z^2(1 + 1/2 + 1/2^2 + 1/2^3........1/2^15) = z^2 ( 1 . ( 1  1/2^15) over 1  1/2

ritez
 one year ago
Best ResponseYou've already chosen the best response.2z^2 ( .99) x 2 z^2 (1.99) = 2z^2..after rounding
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