Answer:
X' = (-3 , -5)
Y' = (-1, -1)
Z' = (4, -8)
General rule: (x,y) = (y, -x)
I am 1 brainly away from the next rank, your help would be appreciated
 
        
             
        
        
        
Answer:
Phone B
Step-by-step explanation:
 
        
                    
             
        
        
        
I have been trying but i am pretty sure it is 36 i think
        
                    
             
        
        
        
45×5 or 45÷5 i hope this helps if it dont im so so very very sorry for you
        
             
        
        
        
Answer:
Option A is correct.
Solution for the given equation is, 
Step-by-step explanation:
Given that : 
Let 
then our equation become;
 .....[1]
           .....[1]
A quadratic equation is of the form:
 .....[2] where a, b and c are coefficient and the solution is given by;
.....[2] where a, b and c are coefficient and the solution is given by; 

Comparing equation [1] and [2] we get;
a = 2 b = -1 and c =-1
then;

Simplify:

or


or
 and
 and 
Simplify:
y = 1 and  
 
Substitute y = cos x we have;

⇒
and

⇒  
 
The solution set:  
Therefore, the solution for the given equation   is,
 is, 