Answer:
30 and -3
Step-by-step explanation:
30 x -3=-90
30-3=27
 
        
             
        
        
        
Answer:
Step-by-step explanation:
what is she considering? I would need more information to complete the probolem 
 
        
                    
             
        
        
        
OK...... your answer would be
- 10y^2 - 26y + 1/y
H0P3 It H3LPS :)
        
             
        
        
        
Answer:
6. x = 28 degrees
7.  z = 1.6 cm
Step-by-step explanation:
6.  
Notice that you can use the property that tells us that the addition of all internal angles of a triangle must give 180 degrees, then you write the following equation:
50 + 69 + (2 x +5) = 180
combine like terms:
119 + 2 x + 5 = 180
124 + 2 x = 180
subtract 124 from both sides:
2 x = 56
divide by 2 both sides:
x = 56 / 2
x = 28 degrees
Problem 7.
If the two triangles are congruent, then the side MN must equal side RS.
Since MN  measure 1,8 cm, then RS must also measure 1.8 cm
and we can write the equation:
1.8 = 3 z - 3
adding 3 to both sides:
1.8 + 3 = 3 z
4.8 = 3 z
dividing both sides by 3:
z = 4.8 / 3
z = 1.6 cm