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3 years ago

13

I need help is it A B C or D

1 answer:

Reptile [31]3 years ago

4 0

The question is asking you to solve for A

to determine the first, fourth and tenth term you simply put those values in for (n)

the first term you then be given by the equation A(1) = 12 + ((1)-1)(3)

A= 12

Same thing for 4th term A(4) = 12 + ((4)-1)(3)

A= 21

10th term: A(10) = 12 + ((10)-1)(3)

A= 39

∴ your answer is C

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