An arithmetic sequence has this recursive formula:
a1=6
an=an-1-3
what is the explicit formula for this sequence?

 D.

Step-by-step explanation:

Given : An arithmetic sequence has this recursive formula:

Using the given information, Second term of arithmetic sequence will be :-

That means common difference =

The explicit formula for arithmetic sequence is given by :-

, where a is the first term and d is the common difference.

Put a= 6 and d= -3, we get

The explicit formula for this sequence :-

d (5 x (-20)) * (100 x (0.7))

step-by-step explanation:

5÷1/100 * -.7 *-20

copy dot flip

5*100 * -.7 *-20

rearrange

5*-20   * 100 *-.7

-100   *-70

7000

351.23

step-by-step explanation: