Combine like terms. 7x-3x=4x and -5-(-2)=-3. The answer is D. 4x-3
Answer:
The lines are perpendicular
Step-by-step explanation:
we have
![2x+y=4](https://tex.z-dn.net/?f=2x%2By%3D4)
isolate the variable y
----> equation A
The slope of the line A is ![m=-2](https://tex.z-dn.net/?f=m%3D-2)
-----> equation B
The slope of the line B is ![m=\frac{1}{2}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B1%7D%7B2%7D)
Remember that
If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)
In this problem
The slopes of line A and line B are opposite reciprocal
therefore
The lines are perpendicular
Answer:
D. 20°, 60°, and 100°
Step-by-step explanation:
basically you're testing which set adds up to 180°:
D should immediately catch the eye since it has a simple 100°, and 60+20 is 80, making D the correct answer
a: 189°
b: 90°
c: 120°
d: 180°
Answer:
he need $5.43
Step-by-step explanation:
Answer:
None of these.
Step-by-step explanation:
8/x is the result when 8 is divided by x.