Step-by-step explanation:
1st one
2nd
4th
Step-by-step explanation:
The given inequality is :

Solving RHS of the inequality:

Adding 6 both sides of the inequality

The attached figure shows the graph for the given inequality.
X + (x + 1) + (x + 2) = 126
3x = 123
x = 41
So the sides are 41, 42 and 43
Answer:
Each side is 35.78 mm
Step-by-step explanation:
A square would have 4 equal sides. Since area of a square is x^2, where x is one side, we can write:
x^2 = 1280
x = 35.78 mm
Each side is 35.78 mm