The answer is b . The boundary line divides the coordinate plane into two half planes.
Answer:
a. 41.5
b, 26.5
Step-by-step explanation:
a.
2x + 6 = 180
2x = 172
x = 86
b.
2x+ 90 +26+11 = 180
2x+127 = 180
2x = 53
x = 26.5
Answer:
C
Step-by-step explanation:
y = (x-1) (x+4)
when y=0
x=1 and x= -4
so select C
A straight line is 180º . This means that
3x+6x=180.
3(20)+6(20)=180
X=20
