Question

18.

Find the common difference of the arithmetic sequence.

–2,
`-1(4)/(5)`,
`-1(3)/(5)`,
`-1(2)/(5)`, . . .

A.
`-(1)/(5)`

B. -5

C. 5

D.
`(1)/(5)`

Answer 1

1/5 or 0.2

Explanation:

Answer:

The common difference is or 0.2

Step-by-step explanation:

Given:

Arithmetic Sequence -2, -1 4/5, -1 3/5, -1 2/5,

First term = a₁ = -2

Second term = a₂ =

Third term = a₃ =

Fourth term = a₄ =

To Find:

Common Difference = d = ?

Solution:

Formula for Common Difference d ,

∴

The common difference is or 0.2