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The inequality that represents the domain of the function is 
<h3>How to determine the domain?</h3>
The function is given as:

Set the radicand greater than or equal to 0

Multiply through by 2
x - 20 ≥ 0
Add 20 to both sides
x ≥ 20
Hence, the domain of the function is x ≥ 20
Read more about domain at:
brainly.com/question/1770447
#SPJ1
Answer:
8
Step-by-step explanation:
AC and BC are the same, so both equal 6
6+6 is 12
Subtract 12 from 20
20-12=8
CD is 8
Answer: 
Step-by-step explanation:
Given
Marcos purchased a sailboat for 
Each year the boat will decrease in value by 
After 1 year it is

after another year it becomes

After
years it is


Answer:
-3
Step-by-step explanation:
y=4x-3
This is in the form
y= mx +b
where m is the slope and b is the y intercept
4 is the slope and -3 is the y intercept