Answer:
15
Step-by-step explanation:
 
        
             
        
        
        
Inverse variation is of the form y=k/x  (direct variation is of the form y=kx)
We are given that x=2 when y=1 so using the inverse form y=k/x we can solve for the constant of variation...
1=k/2
k=2
so the equation is:
y=2/x  now they want us to find y when x=-1 so
y=2/-1
y=-2
        
             
        
        
        
Answer:

Step-by-step explanation:
<u><em>The picture of the question in the attached figure</em></u>
we know that
The perimeter of a triangle is the sum of the length of their three  sides
so

where
a,b,c are the length sides of the triangle
In this problem we have

substitute and solve for the missing length

 
        
             
        
        
        
Answer:
Yes
Step-by-step explanation:



<h3>Hope it is helpful....</h3>