Review Sequences and Series

Find the 11th term of the sequence:

What kind of sequence is it?

Find the next term of this sequence: 10, 8, 5, 1, . . .

Find the 23rd term of the sequence:

What is the sum of the first 20 terms of the arithmetic sequence 2, 5, 8, 11, ...?

Find S₁₄ for the arithmetic sequence.

Choose all the correct statements from the following options below.

Find the sum of the first 50 numbers in this sequence: \frac{1}{2}+\ 1+\frac{3}{2}+2+\frac{5}{2}+\ 3+\. \ . \ .

Fill in the gaps in this arithmetic sequence: -12, ___, ___, ___, ___, ___, 12

(Use format: Number1, number2, number3, . . .)

(a)  

An arithmetic series has a sum of 9. The first term is 13 and the difference is -3. How many terms in the series?

(Write only number)

(a)