Answer:
36 ft.
Step-by-step explanation:
The given perimeter of triangle EDF is 12, in which the hypotenuse is 5. This means that it is a 3-4-5 triangle, meaning that ED = 3, DF = 4, EF = 5. 
It is given that BC (the other triangle's hypotenuse) is 15. This means that the left triangle is to the scale factor of 3 of triangle EDF. Therefore, multiply 3 to all sides measurements, and then add all the sides to get the perimeter. 
Hypotenuse: 5 x 3 = 15
Leg 1: 4 x 3 = 12
Leg 2: 3 x 3 = 9
Perimeter: 15 + 12 + 9 = 36
36 ft. is your answer.
 
        
             
        
        
        
Answer:
how many bags because you just said bags?
 
        
             
        
        
        
Answer:
perimeter: 2(l+b) , area : multiply by breadth
Step-by-step explanation:
perimeter: 2(10.5+5.5)
                :206.5m ans
area: 10.5multiply bye 5.5
       :57.75m ans
2: perimeter: 2(15+6.8)
                    : 36.8cm ans
 area : 15 multiply by 6.8
         : 102cm ans  
 
        
             
        
        
        
Answer:
Plane T
Step-by-step explanation:
The given points A, D, and E are shown as being on the plane T as follows
Point a lays on the boundary of the boundary between plane S and plane T
Points D and E are points on a line DE that is on the plane T
Therefore, given that the line DE and the point A all lay on the same plane T, the plane that contains points A, D, and E, is plane T.
 
        
             
        
        
        
Answer:
2) x = 6    y = 7      3) x = -5    y= 2
Step-by-step explanation:
2) 10x - 8y = 4
    2(-5x + 3y = -9)
-10x + 6y = -18
  10x - 8y =   4      Add both equations together
          -2y = -14
          y = 7            Divide both sides by -2
10(x) - 8(7) = 4       Plug in 7 for the y to solve for x
10x - 56 = 4  
      + 56 + 56        Add 56 to both sides
10x = 60 
x = 6                      Divide both sides by 10
3) Where the two lines intersect, that is the solution to x and y. 
The lines intersect at (-5,2). x = -5      y = 2