Answer:
The shaded area is 
Step-by-step explanation:
we know that
The shaded area is equal to the area of the large square minus the area of the two smaller squares
so
Calculate the shaded area
Remember that
substitute
18 inches or 1 foot and 6 inches
multiply 3 feet by 12 and add two to get the width of the door in inches then subtract 20 inches from it to get the difference
You can answer this problem in two different ways: the first being (17 - 5) * x, and the second being 12 * x.
F(x) = x + 1
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b
g(x) = cx - d
flip values of x and y in each equation, then solve for y:
x = y + a
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b
y = a - bx
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x = cy - d
y = x + d
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c
To solve this problem you must apply the proccedure shown below:
1. You have to find the distance from the center to the focus, as below:
c=√(a^2-b^2)
Where a is the major radius and b is the minor radius.
2. Therefore, by the graph, you have:
a=6
a^2=36
b=3
b^2=9
3. When you substitute the values, you obtain:
c=5.2
4. As you can see in the graph, the coordinates of the center is (3,4), then, the locations of the foci:
3+c=8.2
3-c=-2.2
The answer is: (-2.2,4) and (8.2,4)
