Answer:
9+sqrt(14)
------------------
Step-by-step explanation:
When we rationalize the denominator, we need to multiply by the conjugate
The denominator has a-sqrt(b), we multiply by a+sqrt(b)
Since we have 9 -sqrt(14), we need to multiply by 9+sqrt(14)
What we do to the bottom, we do to the top, so multiply by 9+sqrt(14) over 9+sqrt(14) which is equal to 1. This does not change the equation.
45°
I think you meant m<ACB, and from what I see here, I took half of 90°, which is 45°.
2x-32
You would distribute the 4.
B 56
hope this will help you
thanks
