70+80+(m+10)= 180°
150+m+10=180
160+m=180
m=20°
For 44- 3x-14=2x+10. So x=24
For 45- 6x=90. So x=15
For 46- 7x+5=180. So x=2
I dont know 47. Sorry
B is the only one that would not be perpendicular to the first line. The first line would have a point-slope intercept form of y=-6x+3 and so any line perpendicular to it would require a slope of 1/6. All of them have a slope of 1/6 except B, which has a slope of 6. Let me know if you need a complete show of work as I can show you the math behind my answer.
Answer:
y=
x-1
Step-by-step explanation:
slope:
=
=
point slope formula:
y-y1=m(x-x1)
y-(-1)=(x-0)
y+1=x
y=x-1
