Answer:
x≥2
Step-by-step explanation:
First, write out the equation as you have it:

Then, add
to both sides:

Next, subtract
from both sides:

Finally, divide both sides by
:

or

Therefore: the answer to this inequality/equation is: x≥2
Answer:
n = -2 or n = 10
Step-by-step explanation:
n^2 - 8n - 20 = 0
The first windsurfer is travelling faster. Solution:
1 meter = 3.28084 feet
The first surfer travels at 5 meters/second so you have to multiply 3.28084 by 5 which equals 16.4042 ft/second
There are 60 seconds in a minute so you will have to multiple 16.4042 ft/second by 60 seconds which equals 984.252 ft/minute
984.252 ft/minute > 720 ft/minute