SmokeysTheName
  • SmokeysTheName
PLEASE HELPPP!!!?
Writing
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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SmokeysTheName
  • SmokeysTheName
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anonymous
  • anonymous
a1 = 9 a2 = a1 + 2 = 11 a3 = a2 + 2 = 13 a4 = a3 + 2 = 15 . . . . . . . a12 = a11 + 2 = 31 this is recursive formula..
anonymous
  • anonymous
expicit formula is An = a1 + (n - 1) d An = 9 + ( n - 1) 2

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anonymous
  • anonymous
in 12th row there are A12 = 9 + (12 - 11) 2 = 31 seats
SmokeysTheName
  • SmokeysTheName
thank you can you help me on 3 more pleeease ? (:
SmokeysTheName
  • SmokeysTheName
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SmokeysTheName
  • SmokeysTheName
@ritez
anonymous
  • anonymous
is it z^2
SmokeysTheName
  • SmokeysTheName
i dont know.
SmokeysTheName
  • SmokeysTheName
whatever is there thats what it is.
SmokeysTheName
  • SmokeysTheName
its z2 not z^2
anonymous
  • anonymous
z2 is nothing it should be z^2.ok lets see its solution
SmokeysTheName
  • SmokeysTheName
okay cool
anonymous
  • anonymous
z^2(1 + 1/2 + 1/2^2 + 1/2^3........1/2^15) = z^2 ( 1 . ( 1 - 1/2^15) over 1 - 1/2
anonymous
  • anonymous
z^2 ( .99) x 2 z^2 (1.99) = 2z^2..after rounding
SmokeysTheName
  • SmokeysTheName
next one
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SmokeysTheName
  • SmokeysTheName
@ritez

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