Answer:
Sum of
and
is 
Option B is correct answer.
Step-by-step explanation:
We need to find sum of
and 
Finding sum of
and
:

We know that 
Replacing x^2-4

Now, taking LCM of (x+2)(x-2) and (x+2) we get (x+2)(x-2)

So, Sum of
and
is 
Option B is correct answer.
Answer:
0.0009
Step-by-step explanation:
0.9 / 10^3 = 0.0009
<span>rotation of 180° about the origin is correct. Changing the signs of both x and y rotates 180 degrees.
</span>
Answer:
1. -2/3 (-0.66666)
2. 45% (-0.45)
3. 5.1% (0.051)
4. 0.053 (0.053)
Step-by-step explanation:
Hope this helped!