It is th top right answer because AB = DE but the others are not but length doesn't effect the angles of abcdef
Answer:
m= 4
Step-by-step explanation:
3m +2n= 16 -----(1)
m -2n= 0 -----(2)
From (2):
m= 2n -----(3) (+2n on both sides)
subst. (3) into (1):
3(2n) +2n= 16
6n +2n= 16
8n= 16 (simplify)
n= 16 ÷8
n= 2
subst. n=2 into (3):
m= 2(2)
m= 4
D=(b^2)-(4)(a)(c)
36-(4)(-2)(13)= 139
Answer:
Step-by-step explanation:
hello :
2 < (x+2)/4 ≤4
multiply by 4 : 8 < x+2 ≤16
Subtract 2 : 6 < x ≤14
