Answer:
14vr
Step-by-step explanation:
7vr - (-7rv)=
Subtracting a negative is like adding
7vr + (7rv)=
Changing the order of rv to vr
7vr + (7vr)=
Combing like terms
Answer: This one is D.110! ☺️
group1 a = 0.25
group1 b = 0.75
group2 a = 0.44
group2 b = 0.56
9-6.92820323i Nothing else can be done.
-48 is not a perfect square but 81 is a square. When you try to square -48 it comes to be 6.92820323i.
