I have no idea what did he do
Answer:use a calculator
Step-by-step explanation:
<span>-10 < x - 9
</span><span>-10+9 < x - 9+9
-1<x, or
x> - 1</span>
Answer:
34
Step-by-step explanation:
5x+10=180
5x=170
x=34
Answer
B)
Step by step explanation
The standard form of circle when center(h, k) and radius r, given is
(x - h)^2 + (y - k)^2 = r^2
Given: (h, k) = (5, 0) and r = 3
Now plug in these values in the standard form, we get
(x - 5)^2 + (y - 0)^2 = 3^2

Therefore, the answer is B) 
Thank you :)