The first term of a geometeic series is 1/27, the common ratio is 1/3, find the explicit formula geonetric series?

How do you find the first term in a geometric sequence?

The formula for the nth term of a geometric sequence is given by An = ar^(n - 1), where a is the first term, n is the term number and r is the common ratio.

1)

2)

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Step-by-step explanation:

The general equation of a circle has the form:

Where r is the radius of the circumference.

In this problem we have the circle with equation

1) The intercepts with the x-axis we find them doing y = 0 and solving for x:

The intercepts with the y-axis we find them doing x = 0 and solving for y:

The 4 interceptions are:

2) The radius is:

3) The area of a circumference is: