Answer:
it means that his equation is not true.
Step-by-step explanation:
-2=2 is obviously incorrect, so we must assume that the equation isn't true.
Answer:
x= -3
Step-by-step explanation:
You're Welcome :)
The answer is the first choice: 7, 15, 20.
When you want to know what three numbers can make up a triangle. All you have to do is take the first two numbers and add them up. If the sum is larger than the third number, it can form a triangle. If the sum of the first two numbers are smaller than the third number, it cannot form a triangle.
Hope this helped
You need to know these two formulas:

For example,

Answer:
3.5ft
Step-by-step explanation: