Question

Find the nth term of the sequence if:

a₁ = -2.5, d = 4, and n = = 15
57.5
47.5
61.5
53.5-

Answer 1

Answer: a₁₅=53.5

Explanation:

a₁=-2.5 d=4 n=15

`\boxed {a_n=a_1+(n-1)d}\\\\a_(15)=a_1+(15-1)d\\\\a_(15)=a_1+14d\\\\a_(15)=-2.5+14(4)\\\\a_(15)=-2.5+56\\\\a_(15)=53.5`