Answer:
Step-by-step explanation:
eq. of directrix is y=4 or y-4=0
perpendicular distance of (x,y) from directrix =distance of (x,y) from focus (-3,2)

Answer:
the circumference is 25.133 and the area is 50.265
Answer:
The formula of speed :-
Speed = Distance/Time
Given distance = 10m
Time = 40s
Speed = 10/40
= 1/4
= 0.25m/s
Step-by-step explanation:
24 students / 2 = 12 pairs
12-9 = 3 more pairs need magnets
3 * 3 = 9 more magnets