Find the equation of the parabola whose vertex is the origin and whose directrix is y=2

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

What are the values of each variable in the diagram below?