8. Which of the following is the 43rd term of the arithmetic sequence 3,0-3, ...? A-117
B 120
C. -123
D. -126

C

Step-by-step explanation:

The n th term of an arithmetic sequence is

= a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 3 and d = a₂ - a₁ = 0 - 3 = - 3 , thus

a₄₃ = 3 + (42 × - 3) = 3 - 126 = - 123 → C

C. -123.

Step-by-step explanation:

nth term = a1 + d(n - 1)

43rd term = 3 +  -3(43-1)

= 3 - 126

= -123.

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step-by-step explanation:

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17.08

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