Starygamergirl13
Starygamergirl13 Starygamergirl13
  • 14-01-2019
  • Mathematics
contestada

PLEASE HELP! WILL MARK BRAINLIEST!

PLEASE HELP WILL MARK BRAINLIEST class=

Respuesta :

choixongdong
choixongdong choixongdong
  • 14-01-2019

Answer:

b. 75

Step-by-step explanation:

a(n) = a1 + d(n-1)

a(n) = 8.5 + 3.5(n - 1)

a(20) =  8.5 + 3.5(20 - 1)

a(20) =  8.5 + 3.5(19)

a(20) = 8.5  + 66.5

a(20) = 75

Answer Link
Аноним Аноним
  • 14-01-2019

Answer:

75.

Step-by-step explanation:

The nth term = a1 + d(n  -1)

Therefore the 20th term = 8.5 + 3.5(20 - 1)

= 8.5 + 3.5 * 19

=  75

Answer Link

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