Sum of angles of a triangle = 180°
91 + 10x - 4 + 8x +3 = 180
18x + 90 = 180
18x = 90
x = 5°
Can you show a better picture?
Answer:
make the y int -4 because it passes through (0,-4). to make perpendicular, apply same slope to new equation but change sign
equation:
3x -4
Answer:
Step-by-step explanation:
let coordinates of D are (x,y)
mid point of AC=midpoint of BD
so{ (-3+4)/2,(1+6)/2}={(x+(-1))/2,(y+4)/2}
(1/2,7/2)={(x-1)/2,(y+4)/2}
(x-1)/2=1/2
x-1=1
x=1+1=2
(y+4)/2=7/2
y+4=7
y=7-4=3
so D is (2,3)
Answer:
That's a bit hard. Hope you can solve it!
