Answer:
Step-by-step explanation:
If
, then 
Now, puting
value in the other equation, we have

Therefore, is a cubic equation
-18
Step-by-step explanation:
F(x)=3x-12
F(-2)=3x-2-12
=-6-12
=-18
Answer:
<h2>E. x = 4</h2>
Step-by-step explanation:

Answer: 1. Yes
Step-by-step explanation: They are paralell because they create a straight line and will never interscect each other
Answer:
The modal class is the one with the highest frequency, which is 17
So, the modal class is 20<h<40