Answer:
A and C
Step-by-step explanation:
ez math
Step-by-step explanation:
We need to say that 
is equivalent to what.
We know that, (3)² = 9
So,
We can write 
And 
So,
So, is equivalent to 
.
Hence, this is the required solution.
Answer:
It's C
Step-by-step explanation:
A triangles mesurement has to add up to 180. C is the only one that does.
Hmm
let's try some numbers
we have 3 scenarios
x>y
x=y
x<y
x>y
x=-1 and y=-2
x-y=-1-(-2)=-1+2=1
it's positive when x>y
x=y
x=-1, y=-1
-1-(-1)=-1+1=0
nope
x<y
x=-2 and y=-1
-2-(-1)=-2+1=-1
nope
x-y is positive when 0>x>y
