18 is the right answer. The two fractions must be porportional
-The perimeter is the length of the line if the whole rectangle was straightened out.
-a rectangle has 2 sets of 2 even sides. The top and bottom width would be equal and the two heights would be equal
Armed with these two facts we know the perimeter would be Side A + Side B + Side C + Side D
9.35 + 9.35 + 6.82 + 6.82 = ?
The actual formula for a rectangle or even a square is
2(length + width)
Answer:
Step-by-step explanation:
We are given that DE
We have to determine given DE is exact or not.
Compare it with Mdx+Ndy=0
Therefore, 
If DE is exact then
Hence,it is exact.
Integrate w.r.t x on both sides
...(1)
By using the formula
Differentiate partially equation (1) w.r.t y
By using the formula:
Integrate w.r.t y
Substitute the value
Answer:42
Step-by-step explanation:
