## anonymous one year ago What is the 43rd term of an arithmetic sequence with a rate of increase of -6 and a11 = 12?

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1. anonymous

Let a be the first term. $a _{n}=a+\left( n-1 \right)d$ n=11 d=-6 $a _{11}=12$ find a ,then $find~ a _{43}~by~formula.$