The number  is  200 . 
10 is 5% of 200
        
             
        
        
        
Because the two vertices have the same x-coordinate, the side is a vertical line. It starts vertically from -18 to 18
the length = 18 - (-18)
the length = 18 + 18
the length = 36
The length of the side is 36 unit
        
             
        
        
        
Answer:
I don't know I can't understand do you know that you will lose 5 points
 
        
             
        
        
        
Answer:
x=36
Step-by-step explanation:
17+3 =20
now we have :
x+4
___         = 20
   2
20*2= 40
x+4=40
x=36
hopes this helps
 
        
             
        
        
        
Answer:

Step-by-step explanation:
The question to be solved is the following : 
Suppose that a and b are any n-vectors. Show that we can always find a scalar γ so that (a − γb) ⊥ b, and that γ is unique if  . Recall that given two vectors a,b  a⊥ b if and only if
. Recall that given two vectors a,b  a⊥ b if and only if  where
 where  is the dot product defined in
 is the dot product defined in  . Suposse that
. Suposse that  . We want to find γ such that
. We want to find γ such that  . Given that the dot product can be distributed and that it is linear, the following equation is obtained
. Given that the dot product can be distributed and that it is linear, the following equation is obtained 

Recall that  are both real numbers, so by solving the value of γ, we get that
 are both real numbers, so by solving the value of γ, we get that 

By construction, this γ is unique if  , since if there was a
, since if there was a  such that
 such that  , then
, then 
