The final solutions are
X = 8
X = -4
Answer:
x=12
Step-by-step explanation:
root over 144 is 12 hence x=12
4x+7=2x+11
4x-2x = 2x
2x+7=11
11-7 = 4
2x = 4
2/2 4/2
x=2
Answer:
y<= 3x-1
Step-by-step explanation:
When it comes about inequalities, keep in mind the following
the < sign means that the regions is under whatever is to other side, and the > means that the region is above whatever is on the other side of the sign
So, we see for the graphic that there is a region below a line, this suggests us that there is a < sign implied
The other thing is that there is a convention in math, is the line is graphed using a dashed line, it meas that it is not part of the region, if the line is graphed using a solid line (a continued line) then the line is inside the region, hence there is a = sign implied.
So the answer is y<= 3x-1