Answer:
The answer should be D. 120 degrees
 
        
             
        
        
        
Answer:
Step-by-step explanation:
So let's think about what values you can take square root of...
anything but negative values!
So the first one is not correct because you can also take square root of 0,
squareroot of 0 is 0.
So because of this, C and D are both correct, E is correct because root  x is an increasing function. B is incorrect because (0,0) is an intercept.
 
        
             
        
        
        
Answer:
6 Feet of String.
Step-by-step explanation:
Marla is making 6 Bracelets
Given that each  bracelet requires 1 foot of string
Therefore:
6 bracelets will require 6*1 foot =6 Feet of String.
She will need 6 Feet of String for the bracelets.
 
        
             
        
        
        
Answer:
The correct answer is B. 144
 
        
                    
             
        
        
        
Step-by-step explanation:
First, let us find the magic sum in each row/column/diagonal.
Sum of numbers from 1 to 9 = 45.
45 divide by 3 rows = 15 each row.
The magic sum is 15.
For the diagonals, we have:
8 + 5 + x = Magic sum = 15,
6 + 5 + y = Magic sum = 15.
Therefore x = 2 and y = 4.