Answer:
B
Step-by-step explanation:
You can rule out all others. A is wrong because a triangle cannot be acute and obtuse at the same time. C is wrong because a polygon dosen't neccassarily need to be a triangle, for example, a polygon is a closed shape, so it could be a rectangle. It isn't D because there are obtuse triangles out there. So, the only one left is B.
(7,3)
Step-by-step explanation:
X= -2+3y
....
-2+3y-3y=-2
-2+3y+3y=16
.......
6y=18
...
y=3
x=7
The answer is prolly c because thats the only one that make sence.;
Answer:
you can't simplify further
Step-by-step explanation:
For this case we have the following equation:

We want to clear x:
For this we must follow a series of steps, the first consists of adding 4x to both sides of the equation to obtain:

In this way, the variable term remains on one side of the equation.
Thus, the first step will be:
Add 4x to both sides
Answer:
Option D