Answer:
x=4200
Step-by-step explanation:
10x=42000
x=4200
Answer:
y=−2x−9
Step-by-step explanation:
36 questions-----3 minutes
x questiones-----1 minutes
x=(1*36)/3
x=36/3
x=12 questions
B.
Answer:

Step-by-step explanation:
The given function is

By the triangle inequality property,

and the alternate triangle inequality property;

We apply this property to get:

Expand parenthesis to get:

Simplify to get:

Group similar terms to get:


When x>5,

That's;

A- they are parallel because they have equal slopes.