Answer:
7/12
Step-by-step explanation:
3/12=1/4
2 1/4=9/4
8/12=2/3
1 2/3=5/3
---------------
9/4-5/3=27/12-20/12=7/12
Answer:
29
Step-by-step explanation:
-2x+4+3y-5x-2y
Combine like terms
-7x+1y+4
evaluate
-7(-3) 1(4) 4
Solve
21+4+4
29
<h2>Greetings!</h2>
Answer:
≅ 586.8
Step-by-step explanation:
Take x to be the width, if the length is 5x bigger than the width, then this can be shown by 5x.
The total perimeter is:
(2 * x) + (2 * 5x) because each side has another parallel one.
This means that 2x + 10x = 130
12x = 130
Divide both sides by 12:

x = 
So the area = length * width
x * 5x = area
Substitute the values in:
= 586.8055... ≅ 586.8
So the approximate area is 586.8
<h2>Hope this helps!</h2>
Because the 18-gon is symmetrical, you can rotate it by 360/18 or 20 degrees. This is because when you rotate it by 20 degrees(to the left for explanation matters), any angle will now be in the position of its angle to its left.