### Home > CCA2 > Chapter 11 > Lesson 11.2.1 > Problem 11-44

11-44.

For the sequence: 7, −2, −11, −20, … Homework Help ✎

Find

*t*(40), the 40^{th}term.Find

*S*(40) , the sum of the first 40 terms.

*t*(*n*) = −9*n* + 16

*t*(40) = −344

Use the summation formula: