What is the explicit formula for the arithmetic sequence 4/5, 29/30, 17/15, 13/10. answer is d on edg an = 4/5 + 1/6(n-1)

Step-by-step explanation:

The explicit formula is given by:

Where a is the first term (4/5) and d is the common difference (the difference is any 2 terms). So to find d:

29/30 - 4/5

29/30 - 24/30

5/30

1/6

d = 1/6

Now putting them into the formula:

The last answer choice is right.

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!