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I am Lyosha [343]
3 years ago
14

The nth term of a sequence is 25-3n

Mathematics
2 answers:
jeyben [28]3 years ago
7 0
A)
T¹=25-3(1)=22
T²=25-3(2)=19
T³=25-3(3)=16

b)
t^ {10}  = 25 - 3(10)  =  - 5

Komok [63]3 years ago
5 0

Answer:

22, 19, 16 and - 5

Step-by-step explanation:

To evaluate any term from the n th term formula substitute the terms position value for n

given a_{n} = 25 - 3n, then

(a)

a_{1} = 25 - (3 × 1) = 25 - 3 = 22

a_{2} = 25 - (3 × 2) = 25 - 6 = 19

a_{3} = 25 - (3 × 3) = 25 - 9 = 16

(b)

a_{10} = 25 - (3 × 10) = 25 - 30 = - 5


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