Question

PLEASE HELPPP!!!?

Answer 1

a1 = 9
a2 = a1 + 2 = 11
a3 = a2 + 2 = 13
a4 = a3 + 2 = 15
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a12 = a11 + 2 = 31

this is recursive formula..

Answer 2

expicit formula is An = a1 + (n - 1) d
An = 9 + ( n - 1) 2

Answer 3

in 12th row there are A12 = 9 + (12 - 11) 2 = 31 seats

Answer 4

thank you can you help me on 3 more pleeease ? (:

Answer 5

@ritez

Answer 6

is it z^2

Answer 7

i dont know.

Answer 8

whatever is there thats what it is.

Answer 9

its z2 not z^2

Answer 10

z2 is nothing it should be z^2.ok lets see its solution

Answer 11

okay cool

Answer 12

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

Answer 13

z^2 ( .99) x 2
z^2 (1.99)
= 2z^2..after rounding

Answer 14

next one

Answer 15

@ritez