Allishenie1230 Allishenie1230
  • 12-07-2021
  • Mathematics
contestada

Can someone help me with this math homework please!

Can someone help me with this math homework please class=

Respuesta :

Аноним Аноним
  • 12-07-2021

Answer:

10

Step-by-step explanation:

f ( 1 ) = 18

First term ( a ) = 18

f ( n + 1 ) = f ( n ) - 2

When, n = 1

f ( 1 + 1 ) = f ( 1 ) - 2

f ( 2 ) = 18 - 2

f ( 2 ) = 16

f ( 2 ) - f ( 1 )

= 16 - 18

= - 2

Common difference ( d ) = - 2

f ( 5 )

= a + 4d

= 18 + 4 ( - 2 )

= 18 - 8

= 10

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