Ask a New Question

Question

For an arithmetic sequence. Given: S5 + S6 = 44 and S11 = 47, find S22.
2 years ago

Answers

oobleck
solve
a+4d + a+5d = 44
11/2 (2a + 10d) = 47
to find a and d, then find S22 = 22/2 (2a+21d)
2 years ago

Related Questions

Given the arithmetic sequence -6,-2½,1.....71. Find the common difference Which arithmetic sequence is described by the linear function f(n)=12n−13? Which arithmetic sequence is described by the linear function f(n) = 1/2n − 13? Which arithmetic sequence is described by the linear function f(n)=12n−13? -25/2, -12, -23/2... 27... Which arithmetic sequence is described by the linear function f(n)=12n−13 ?(1 point) Responses... Which arithmetic sequence is described by the linear function f(n)=12n−13 ? 27/2,1/4,29/2 . . .... In the arithmetic sequence −18,−12,−6, . . . , which term is 54?(1 point) Responses 13th 13th... Which arithmetic sequence is described by the linear function f(n)=12n−13?(1 point) Responses 27... Use the arithmetic sequence formula \(a_n=5+\left(n-1\right)\cdot2\) to complete the missing values...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use