Answer:
The absolute value of 9 is... 9.
Step-by-step explanation:
8x^2 + 5y + 1
1 + x^2 - 3 + 2y + 7x^2 + 3 + 3y
group like terms
= x^2 + 7x^2 + 2y + 3y + 1 - 3 + 3
add similar items
= 8x^2 + 2y + 3y + 1 - 3 + 3
= 8x^2 + 5y + 1 - 3 + 3
= 8x^2 + 5y + 1
as the following pic you can see the answer.
#diameter is 8 so radius is 4
