ANSWER
The difference is,

EXPLANATION
To find the difference, we just have to simplify the expression.
The given expression is

We factor the denominator of the second fraction to get,

We can now see clearly that the LCM is

We collect LCM to get,

We now expand the bracket to obtain,

This gives us,
We know that when a line intercepts the y axis, x is 0. So substitute x as 0, which makes the equation 5y = 20 and divide both sides by 5, so y = 4 which is the y intercept.
THe answer is -18.5. Hope its right
The value of the given surface integral is 4.
The given plane intercepts the coordinate axes at (2, 0, 0), (0, 2, 0), and (4, 0, 0). These point are the coordinates of a triangular region that we can parameterize using.

<h3>What is the surface integral?</h3>
A surface integral is a generalization of multiple integrals to integration over surfaces. It can be thought of as the double integral analog of the line integral. Given a surface, one may integrate a scalar field over the surface or a vector field.
with 0≤u≤1 and 0≤v≤1. Then the surface element ds is equivalent to

The surface integral is then

Therefore the value of the given surface integral is 4.
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You will need to draw the shape of the circular pool and measure it until you reach the 50ft