A sequence is defined by the explicit formula an=3n+4 Which recursive formula represents the same sequence of numbers?

Option (3)

Step-by-step explanation:

Explicit formula of the sequence is,

From this explicit formula,

First term of the sequence will be,

Second term of the sequence,

= 13

3rd term of the sequence,

   = 31

Sequence formed,

7, 13, 31 ..........

From the given options,

Recursive formula,

= 13

    = 39 - 8

    = 31

Sequence formed from this recursive formula will be,

7, 13, 31........

Therefore, Option (3) will be the answer.

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

step-by-step explanation:

mean or average is 40.6