Answer:
This one is pretty straightforward. 
x=-5/yz
 
        
                    
             
        
        
        
Answer:
$
Step-by-step explanation:
 
        
             
        
        
        

Question 1. If m∠5 = 115 degrees, find m∠1 = 115°
because they form corresponding Angle pair
Question 2. If m∠7 = 30 degrees, find m∠2 = 30° 
because they form Alternate Exterior angle pair
Question 3. If m∠6 = 50 degrees, find m∠4 = 50° 
because they form Alternate Interior Angle pair
Question 4. If m∠4 = 72 degrees, find m∠1 = 108° 
because they form linear pair, their sum = 180°
 
        
             
        
        
        
Answer:
B
Step-by-step explanation:
20x^2 - 12x - 8
4 ( 5x^2 - 3x - 2 )
5 * - 2 = - 10
Factors of - 10
1 , - 10
10, - 1
<em>2, - 5</em>
5, - 2
5x^2 - 5x + 2x - 2
5x (x - 1)  2 (x - 1)
4 (x - 1) (5x + 2)
(4x - 4) (5x + 2)
 
        
             
        
        
        
Answer:
Right-triangle
Step-by-step explanation:
Take a right triangle for example, then twist it 360 degrees, keeping the longest leg at the center of rotation. It will then form a cone.