Find the first,fourth,and tenth terms of the arithmetic sequence described by the given rule. A(n) = 12+(n-1)(3)

Question

Find the first,fourth,and tenth terms of the arithmetic sequence described by the given rule.  A(n) = 12+(n-1)(3)

whpalmer4 · Answer

$$a_n = 12+(n-1)(3)$$The first term is $a_1$ and $n = 1$:
$$a_1 = 12 + (1-1)(3) = 12 + 0(3) = 12$$
You should be able to find $a_4, a_{10}$ which have values of $n = 4, n=10$ respectively (I hope you see the relationship!)

anonymous · Answer

Thank you

whpalmer4 · Answer

Do you have some answers for me to check?

anonymous · Answer

Yes but this is a different question if a snail travels at a rate of 2.37 feet per minute wouldn't the rule be 2.37×6

anonymous · Answer

And it ask  how far will of travel in 6 minutes I put 14.02

anonymous · Answer

14.22 I meant