Write a recursive formula for each sequence given or described below.
. it follows a times 10 pattern: 4, 40, 400, 4000, ….

The sequence is geometric.

Step-by-step explanation:

If the sequence is arithmetic common difference will be same, if the sequence is arithmetic common ratio will be same.

Here the sequence is 4, 40, 400, 4000, …

       Difference between terms

                                         40 -4 = 36

                                        400 - 40 = 360

      They are not same , so the sequence is not arithmetic.

       Ratio between terms

                                         40/4 = 10

                                        400/40 = 10

                                        4000/400 = 10

      They are same , so the sequence is geometric.

Now we need to find recursive formula for the sequence.

Recursive formula for GP

use substitution to solve each system of equations. y = x + 5 3x + y = 25 62/87,21 y = x + 5 3x + y = 25 substitute x + 5 for y in the second equation. substitute the solution for x into either equation to find y. the solution is (5, 10)

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step-by-step explanation:

answer: 1, 3 and 5 are correct

step-by-step explanation: