Sequences

Which of the following is next to 12 , 15 ,18 ...?

• A.19

• B. 20

• C. 21

• D. 22

Describe the pattern in the sequence. Find the next three terms.

13, 15, 17, 19,...

• Add 2; 23, 25, 27

• Multiply by 2; 38, 76, 152

• Add -2; 17, 15, 13

• Add 2; 21, 23, 25

How many of these sequences have a common difference of -4?

-19, -15, -11, -7, -3,...

19, 15, 11, 7, 3...

3, 7, 11, 15, 19...

-3, 7, -11, 15, -19,...

• 0

• 1

• 2

• 3

In the sequence 1, 4, 7, 10, 13, what number is in the 4th term

• 4

• 7

• 10

• 13

Given the sequence 2, 9, ___, 23, 30,... what is the 3rd term?

• 10

• 12

• 14

• 16

in the sequence 700, 70, 7, 0.7, 0.07, what is the next term?

• 0.70

• 0.007

• 0.070

• 0.707

In the sequence 49, 44, 39, 34, 29, __, what are the next term after 29?

• 54 and 59

• 24 and 19

• 14 and 9

• -24 and -19

What are the next 2 terms:
12.7, 19.2, 25.7, 32.2...

• 38.7 and 45.2
• 38.4 and 44.6
• 37.7 and 42.2

Which sequence is an arithmetic sequence?

• 3, 6, 2, 7, ...

• 3, 6, 12, 24, ...

• 3, 6, 10, 15, ...

• 3, 7, 11, 15, ...

This is an arithmetic sequence. 5, 2, –1, –4, . . .

What is a₇ ?

• -13

• -11

• -18

• -22