A recursive formula for the sequence 18 9 4.5

9 × (½)^(n-2)

Step-by-step explanation:

It's a Geometric sequence with:

First term: 18

Common ratio: 9/18 = ½

Nth term: 18 × (½)^(n-1)

9×2 × (½)^(n-1)

9 × (½^-1) × (½)^(n-1)

9 × (½)^(n-2)

start with a line segment pq that we will copy. mark a point r that will be one endpoint of the new line segment. set the compasses' point on the point p of the line segment to be copied. adjust the compasses' width to the point q. the compasses' width is now equal to the length of the line segment pq.

step-by-step explanation:

square root of 36/6 = 2.449489743

square root of 16/6 = 1.632993162

square root of 6 = 2.449489743

the answer is square root of 16/6 because the square root of 36/6 is the same answer as square root of 6 = 2.449489743