zay1099 zay1099

19-05-2017
Mathematics

contestada

Find the thirty second term of the following sequence 9, 15, 21

Respuesta :

bmor2102 bmor2102

19-05-2017

the answer is 27 going up by 6

Answer Link

19-05-2017

A32=?
A1=9
A2=15
An=a1+d (n-1)
15=9+d (2-1)
15=9+d
-9 both sides
6=d
An=9+6 (n-1)
A32=9+6 (32-1)
A32=9+31×6
A32=9+186
A32=195

Answer Link

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