Arithmetic Sequences: Explicit Formula and Common difference

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Find the common difference: -31, -24, -17, -10

7

Find the common difference: 38, 46, 54...

8

Find the common difference: 25, 34, 43, 52

9

Find the common difference: 14, -86, -186, ...

-100

Find the common difference: -38, -40, -42...

-2

Find the common difference: 32, 12, -8, -28

-20

Find the common difference: -11, -14, -17, -20

-3

Find the common difference: 5, -25, -55, -85

-30

Find the common difference: 11, 13, 15, ...

2

Find the common difference: -11, 9, 29...

20

Find the common difference: -36, 164, 364...

200

Find the common difference: 21, 25, 29, 33...

4

Find the explicit formula: -20, 80, 180, 280...

A(𝑛) = -120 + 100n

Find the explicit formula: -15, -13, -11, -9...

A(𝑛) = -17 + 2n

Find the explicit formula: -21, -19, -17, -15...

A(𝑛) = -23 + 2n

Find the explicit formula: -22, -17, -12, -7...

A(𝑛) = -27 + 5n

Find the explicit formula: -25, -5, 15, 35, ...

A(𝑛) = -62 + 100n

Find the explicit formula: 18, 118, 218, 318, ...

A(𝑛) = -82 + 100n

Find the explicit formula: -18, -27, -36, -45...

A(𝑛) = -9 - 9n

Find the explicit formula: 11, -89, -189, -289...

A(𝑛) = 111 - 100n

Find the explicit formula: 40, 60, 80, 100...

A(𝑛) = 20 + 20n

Find the explicit formula: 34, 41, 48, 55...

A(𝑛) = 27 + 7n

Find the explicit formula: 13, 23, 33, 43...

A(𝑛) = 3 + 10n

Find the explicit formula: 35, 32, 29, 26 ...

A(𝑛) = 38 - 3n

Find the explicit formula: 37, 29, 21, 13, ...

A(𝑛) = 45 - 8n

Find the common difference: 38, 46, 88, 123...

Not an arithmetic sequence


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