You need to find the circumference of the whole circular pool and then subtract from it the arc length that is 1/4 of the circumference. The circumference formula is C = (3.14)(d), which in our case is 3.14(40) which is 125.6. Now we need the arc length we need to take away. 1/4 of a circle corresponds to a 90 degree angle, so in the formula for arc length, we have this:

which equals 31.4. Now subtract that from the circumference of the whole circle and you get the outside of the circle minus that arc length. That's 94.2. But we have to go in the radius times 2 to enclose the pie shaped piece we cut away. So we have 134.2. She should've just stuck with enclosing the circle; she would have used less fencing!
2x + b = w
2x = w - b
x = (w - b)/2
The answer is <span>x - 1 = 3x + 9
All steps are:
</span>Step 1: 4ˣ⁻¹ = 64ˣ⁺³<span>
Step 2: 4</span>ˣ⁻¹ = (4³)ˣ⁺³ <span>
Step 3: 4</span>ˣ⁻¹ = 4³ˣ⁺⁹
Step 4: x - 1 = 3x + 9
Step 5: x - 3x = 1 + 9
Step 6: -2x = 10
Step 7: x = 10/-2
Step 8: x = -5
<h3>
<u>Explanation</u></h3>
We have the given slope value and the coordinate point that the graph passes through.

where m = slope and b = y-intercept. Substitute the value of slope in the equation.

We have the given coordinate point as well. After we substitute the slope, we substitute the coordinate point value in the equation.

<u>Solve</u><u> </u><u>the</u><u> </u><u>equation</u><u> </u><u>for</u><u> </u><u>b-term</u>

The value of b is 6. We substitute the value of b in the equation.

We can also use the Point-Slope form to solve the question.

Given the y1 and x1 = the coordinate point value.
Substitute the slope and coordinate point value in the point slope form.

<u>Simplify</u><u>/</u><u>Convert</u><u> </u><u>into</u><u> </u><u>Slope-intercept</u>

<h3>
<u>Answer</u></h3>
<u>
</u>