14. sometimes, you can have a 45-45-90 or 60-30-90 triangle (degrees)
sometimes true
15. always
16. never, paralellogram has 2 pairs of paralell sides, trapezoid has 1
17.always
18. sometimes
19. always
20. always
        
             
        
        
        
For x=1: -7 x 1 + 4 = -3     y=-3
The ordered pair:(1, -3)
for x=3: -7 x 3 + 4 = -17    y=-17
The ordered pair:(3, -17)
for x=5: -7 x 5 + 4 = -35    y=-35
The ordered pair:(5, -35)
for x=7: -7 x 7 + 4 = -45    y =-45
The ordered pair:(7, -45)
        
             
        
        
        
Answer:
x = -1
y = 9
Step-by-step explanation:
jggchgcjgjcgjcgjcgjcgjcgjcgjc
 
        
             
        
        
        
Answer:
then subtitute x to find <FGH
 
        
             
        
        
        
Combine like terms 
8x+24=x+5
subtract x from both sides 
8x+24=x+5
-x -x 
7x+24=5 
subtract 24 from both sides 
7x+24=5 
 -24 -24
7x = -19
divide 7 from both sides 
7x = -19
7x/7 = -19/7
x= -19/7