F(2)=8 and f(5v)=25v^2+15v-2
The measure of the third side must be less than the sum of the other two. That property is valid for all triangles.
For this question, call x the measure of the third side. So you must have
x < 4 + 3
x < 7 ft
The only option that satisfies the condition above is
option A) 5 ft.
I hope this helps. =)
Answer:
3 is the right I think idonk
Answer:

Step-by-step explanation:

A is commutative property
B is associative property
Explanation: