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3 years ago

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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