Answer:
Well, I'm not sure what you mean but Ptolemy's Theorem gives a relationship between the side lengths and the diagonals of a cyclic quadrilateral; it is the equality case of Ptolemy's Inequality. Ptolemy's Theorem frequently shows up as an intermediate step in problems involving inscribed figures.
Answer:
The first question is A.
The second question is C.
The thid question is B., I think i'm not quit sure sorry
Answer:
x= -2
Step-by-step explanation: If you feel skeptical about my answer, then you should plug -2 back into the equation to check if it's correct. And it's correct for me when I did it.
Answer:
173/1000
Step-by-step explanation:
135 divided by 9 is 15 so there's 15 people in each group and this people 15 people will watch each movie.