The answer is the one that has a denominator of X-5 :)
ANSWER

EXPLANATION
The given expression is

The middle radical contains a perfect square.



Note that:


Answer:
D. -1/2
Step-by-step explanation:
When a line is perpendicular to another line the slope will be the exact opposite. For example line A = y = 3x + 5 the line perpendicular to it will be -1/3x.
So -1/2 is the slope of your perpendicular line.
divide the frequency of 6 by the total frequency to obtain a probability

(also 15%)