Hello!
The formula for the area of a circle is:
A = 
x r²
Answer: -9 1/3 or -9.3333333
Step-by-step explanation: You would just have to divide those two numbers and then add the negative to your answer.
Answer:
The reason HIV attacks T cells are because T cells produce antibodies that kill HIV.
Step-by-step explanation:
Your white blood cells help to fight off infection, The reason HIV attacks T cells are because T cells produce antibodies that kill HIV. Its like a battle between the two. HIV wants to stay there and T cells are trying to get rid of it so T cells are HIV main target.
Answer:
= -1 5/12 hope this helps
