Arithmetic and Geometric Sequence Review

Find the 10th term.

• 16
• 12
• 21
• 30

Tags

CCSS.HSF.BF.A.2

Find the 32nd term of this sequence.
9, 4, -1, -6, -11, ...

• 81
• -34
• -146
• -225

Tags

CCSS.HSF.BF.A.2

Find the 25th term of the sequence if the first term is 5 and the sequence is increasing by $\frac{1}{2}$ .

• 18

• 17

• 15

• 14

Tags

CCSS.HSF.BF.A.2

How many terms are in an arithmetic sequence whose first term is -3,common difference is 2, and last term is 23?

• 9

• 12

• 14

• 23

Tags

CCSS.HSF.BF.A.2

What is the next term in the sequence 15, 11, 7, 3, ___?

• 0

• -1

• 1

• -2

What is the common ratio in the geometric sequence 5, -10, 20, -40...

• 2

• -2

• 1

• -1

Find the next term in the geometric sequence ____, 4, 12, 36,...

Complete the geometric sequence: ___, 6, ___, 54 , 162.

Find the number of terms in an arithmetic sequence,


   $-3.4,\ -1.1,\ 1.2,\ 3.5,...,\ 38\ \ \ \ a_n=a_1+\left(n-1\right)d$  

• 10

• 15

• 20

• 25

Use: $s_n=\frac{n}{2}\left(a_1+a_2\right)$  Evaluate the sum.
 $\sum_{n=1}^{106}\left(-3n+7\right)$  

• -61,271

• -16,271

• -27,161

• -72,161