Starygamergirl13 Starygamergirl13

14-01-2019
Mathematics

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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

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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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