Answer:
See below.
Step-by-step explanation:
Refer to the graph.
The range of a graph is the span of y-values it covers.
From the graph, we can see that the span of y-values is all values greater than or equal to 0.
Therefore, our range is, in interval notation:

Note that we use brackets with the 0 because 0 is included in our range.
In set notation, this is:
Solve by Substitution
Answer:
x = -5
y = -2
Answer:
7.5kilometer
Step-by-step explanation:
for 30mins semin runs 5kilometer
then for 1min: (1min×5kilometer)÷30mins,
therefore, for 45mins: (45mins×5kilometer)÷30mins=7.5kilometer
Answer:
Step-by-step explanation:

Answer:
Yes
Step-by-step explanation:
25+144=169
the frame forms perpendicular lines meaning they are 90 degrees