Answer:
1.x^1=1.73205,x^2=1.73205  2. x^1=-2.5,x^2=-3/2 3.x=74
Step-by-step explanation:
 
        
             
        
        
        
Answer: 250 hamburgers
Step-by-step explanation: x= hamburgers 
If there are 72 more cheeseburgers than hamburgers there are:
x+72
The number of cheeseburgers and hamburgers=572 so:
572= x+72+x 
Then solve
572=x+72+x
572=2x+72
-72 -72
———————
500=2x
500/2=2x/2
250=x
 
        
             
        
        
        
Answer: The last option.
Step-by-step explanation:
 1. By definiton, the rotation rule 90° about the origin is:
 (x,y)⇒(-y,x)
 2. You know that the coordinates of triangle X'Y'Z' are the following:
 X'(-2,2)
 Y'(0,6)
 Z'(1,1)
 3. Now, when you apply the rule, you obtain that the coordianates of the pre-image are the following:
 X(2,2)
 Y(6,0)
 Z(1,-1)
 Therefore, the answer is the last option.