Review All STS 1 2024/2025

Which of the following is an example of an arithmetic sequence?

• 4, 8, 16, 32, 64

• 15, 13, 11, 9, 7

• 1, 2, 4, 7, 11

• 3, 6, 12, 24, 48

The first three terms of an arithmetic sequence are as follows

13, 19, 25

What are the next two terms of the sequence?

• 31, 37

• 30, 37

• 31, 36

• 30, 36

The first three terms of an arithmetic sequence are as follows

3, -4, -11

What are the next two terms of the sequence?

• -17, -25

• -18, -25

• -18, -26

• -17, -26

What is the common difference of the sequence 2, -1, -4, -7, ...

• -3

• -2

• -1

• 3

Find the 26th term in the arithmetic sequence:

-15, -35, -55, -75, ...

• -515

• -535

• -490

• -460

Find the 75th term of the arithmetic sequence -17, -13, 9, ...

Find the common difference: 29, 21, 13, 5, ...

• d = -10
• d = -9
• d = -8
• d = -7

How many terms are there in the sequence 1, 4, 7, 10, ..., 682?

• 228

• 268

• 248

• 238

A theater has 32 rows of seats. If there are 26 seats in the 1st row, 30 in the 2nd, 34 in the 3rd, and so on, how many seats are there in all? Assume the pattern continues.

• 2,791 seats

• 2,803 seats

• 2,816 seats

• 2.829 seats

Find the sum of first 20 even numbers.

• 400

• 410

• 420

• 430