Simply add all of it together.
13+6=19
19+8=27
27+7=34
34 is the perimeter
2x -4xydy/dx+ 2ydy/dx= 0
(2y-4xy) dy/dx = -2x
dy/dx = -2x / 2y-4xy
Answer:

Step-by-step explanation:
we have
----> equation A
----> equation B
Multiply the equation B by 2 both sides
------> equation C
Adds equation A and equation C

Find the value of y



the solution is the point 
<h3>
Answer: C) 2</h3>
The term 2 is really the same as 2*1 = 2x^0. Recall that anything (except 0) to the zeroth power is 1. So the rule is x^0 = 1 when x is nonzero.
Looking at 2x^0, we see that 2 is the coefficient here because it is the constant being multiplied with the variable term.