Answer:
y = -1
+ 1
Step-by-step explanation:
The line (a) passing through point (3, -4) is perpendicular to line (b) whose equation is; y = -2 +
x
The slope of line (b) = 
For perpendicular lines, the product of their slopes = -1
So line (a) has a slope of: -1 ÷
= -
Taking another point (x,y) on line (a);
Slope = change in y ÷ change in x
= -
y + 4 =
(x - 3)
y = -
x + 5 - 4
y = -
x + 1
Finally,
y = -1
+ 1
Answer:
35 degrees
Step-by-step explanation:
The angles in a triangle and a straight line add up to 180 degrees.
So adding the angles together:
BCD + BCA = 180
75 + BCA = 180
BCA = 115
Then,
BCA + BAC + ABC = 180
115 + 40 + ABC = 180
Therefore,
ABC = 35 degrees
No its rational....................