Answer: D is the correct answer.
 
        
             
        
        
        
Answer:
-21
Step-by-step explanation:
- * + = -
- * - = +
+ * + = +
Here + * - = -
7* 3 = 21 and sign is -ve
 
        
                    
             
        
        
        
Answer:
the domain is {0, 1, 2, 3, 4... to positive infinity}
The range is {-1, -3, 0, -4 and so on}
this is not a function
Step-by-step explanation:
domain is a set of all x values, so just write the x values based on the graph
range is a set of all y values, so just write y values based on the graph
not function because it doesnt satisfy with the vertical line test.
i hop it help u
 
        
             
        
        
        
Answer:
   (2, -3)
Step-by-step explanation:
Apparently, the equations are supposed to be ...
The solution for x can be found by subtracting the second equation from the first:
   (4x +y) -(3x +y) = (5) -(3)
   x = 2 . . . . . . . matches the second answer choice
Y can be found from either equation:
   y = 5 - 4x . . . . . subtract 4x from the first equation
   y = 5 -4(2) = -3
The solution is (x, y) = (2, -3).
 
        
             
        
        
        
Answer:
50.714 (3 dp)
Step-by-step explanation:
Using trigonometry.
