Please explain how you answered it along with your answer - thanks

B

Step-by-step explanation:

Because you have to separate the equation. So you get > And <6

Then you have to solve for x so you get x> and x>11

Then you find the intersection so the answer is B

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

i dont know it

step-by-step explanation: