1. turn it into standard form:
first equation:
y = x − 4
y - x = -4
second equation:
y = 3x + 4
y - 3x = 4
2. multiply the first equation by -3 and then add both equations in order to remove x.
-3y +3x = 12
+ y - 3x = 4
-2y = 16
y = -8
3. With y, plug it in the first equation.
-8 = x -4
x = -4
Your intercept is (-4, -8)
The answer is (−4, −8), because the point satisfies both equations
3 x + 25 = 3.5 x
3.5 x - 3 x = 25
0.5 x = 25
x = 25 : 0.5
x = 50°
m ∠ DBC = 3.5 · 50°
Answer:
<span>m ∠ DBC = 17</span>5°
Answer: -15
Step-by-step explanation:
I think that's right
W is 21/4+5/6 that is equal 73/12