Question

The first term of an arithmetic sequence is -3 and the fifteenth term is 53. What is the common difference of the sequence?

Answer 1

4

Answer 2

ok thnx

Answer 3

yw

Answer 4

Let the common difference be d. Here 1st term=a=-3 now 15th term is given by a+(15-1)d=a+14d=-3+14d by question -3+14d=53 and hence 14d=56 and hence d=4

Answer 5

Please don't give just the answers, it's against the rules and could get you banned.