You can use Pythagoras theorem to find the radius.
r^2 + 8^2 = 10^2
r^2 + 64 = 100
r^2 = 36
r = 6
I hope this helps... try the app called photo math
Answer:
A
Step-by-step explanation:
note that i = 
given
- 1 + 2i
= - 1 + 
= - 1 + 
Answer:
She subtracted the two 10x's where instead you're supposed to add them together.
Step-by-step explanation: