Answer:
65.56°
Step-by-step explanation:
We know that if we take dot product of two vectors then it is equal to the product of magnitudes of the vectors and cosine of the angle between them
That is let p and q be any two vectors and A be the angle between them
So, p·q=|p|*|q|*cosA
⇒
Given u=-8i-3j and v=-8i+8j


let A be angle before u and v
therefore, 
⇒
Therefore angle between u and v is 65.56°
 
        
             
        
        
        
Answer:nhnc
add it mc
Step-by-step explanation:vgnhc
 
        
             
        
        
        
Answer: the answer is 12
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Im not sure but i did 5x9=45 
Step-by-step explanation: