Answer:

Step-by-step explanation:
We can apply Pythagoras' Theorem.

Answer:

Step-by-step explanation:
You are given the relation 
This means that

The input values of this relation are
, so the domain of this relation is 
The output values of this relation are
, so the range of this relation is 
Answer:
8 cm
Step-by-step explanation:
Given:
The system of inequalities is:


To find:
The graph of the given system of inequalities.
Solution:
We have,


The related equations are:


Table of values for the given equations is:

0 1 -3
3 0 3
Plot (0,1) and (3,0) and connect them by a straight line to get the graph of
.
Similarly, plot (0,-3) and (3,3) and connect them by a straight line to get the graph of
.
The signs of both inequalities are ">". So, the boundary line is a dotted line and the shaded region or each inequality lie above the boundary line.
Therefore, the graph of the given system of inequalities is shown below.