Answer:
$336.44
Step-by-step explanation:
$402.44 - $66 = $336.44
Factor out the 4 in both equations
8a^2-20^2=(2^2 times a^2 times 2)-(2^2 times 5)
therefor it is also equal to
(2a)^2 times 2-(2^2 times 5)
we can force it into a difference of 2 perfect squares which is a^2-b^2=(a-b)(a+b)
(2a√2)^2-(2√5)^2=((2a√2)-(2√5))((2a√2)+(2√5))

To solve for
, we need to isolate it on one side of the equation.
Take the square root of both sides, making sure to use both positive and negative roots.

cannot be simplified, so we'll leave it as-is.
Add
to both sides to fully isolate
.

Expand the solution by making two solutions, one where
is positive and one where it's negative.

Answer:
<h2>A. -2y+5x/3x-2y</h2>
Step-by-step explanation:
Given the complex fraction;

First we will find the LCM of the numerator and the denominator as shown below;

Then we divide both equation by multiplying the numerator by the reciprocal of the denominator as shown;

This gives the required answer
This solution to this problem is predicated on the fact that the circumference is just:
. A straight line going through the center of the garden would actually be the diameter, which is well known to be two times the radius of the circle, so we can say that the circumference is just:

So, solving for both the radius and the diameter gives us:

So, the length of thes traight path that goes through the center of the guardain is just
, and we can use the radius for the next part of the problem.
The area of a circle is
, which means we can just plug in the radius and find our area:

So, we have found our area(
) and the problem is done.