Answer:
A. U - 2v = -14i +13j
Step-by-step explanation:
If u = (-2, 5) and v = 6i -4j
Then 2v = 2*(6i-4j) = 12i-8j
u-2v =  -2i +5j  - (6i -4j)
Distribute the minus sign  
         -2i +5j -6i+4j
-2i +5j
-12i + 8j
---------------
-14i +13j
 
        
             
        
        
        
We cant see the whole question
        
             
        
        
        
Answer:
A and C
Step-by-step explanation:
The order must always be the same.
 
        
             
        
        
        
Answer:
Slope = 
4x + 3y = 23
Step-by-step explanation:
slope = 
The equation:
 m is the slope
   m is the slope

y - 5 = -4/3 (x - 2) Multiply both sides by 3
3y -15 = -4 (x - 2)  
3y - 15 = -4x + 8
3y + 4x = 8 + 15
3y + 4x = 23
4x + 3y = 23
 
        
             
        
        
        
Answer 
14.4 ft~
Step-by-step explanation 
A kite is flying 12 feet off the ground, therefore the height is 12 (assuming the line is tied to the ground if a person is holding the line then the height would be less)
Assuming the sun is positioned in such a way that the shadow represents a horizontal distance. Horizontal distance of shadow = 8 
Use Pythagoras Theorem
Where a^2 + b^2 = c^2
8^2 + 12^2 = 208
Square root 208 = 14.4~
~ Hoodini, here to help :)