Answer:
Ray BA
Step-by-step explanation:
RAY BA
B IS THE POINT OF EMERGENCE OF RAY AND GOING IN THE DIRECTION BA.
First quartile of the distribution is, Q = 39.
i.e 75% of students have scored more than 39.
So, total number of students scored more than 39 are :

Therefore, number of students scored higher than 39 are 312.
Hence, this is the required solution.
The total shaded area must be 2/8 = 1/4 of the whole area.
Answer:
( c+a, b)
Step-by-step explanation:
The length of the horizontal line is c by taking points D and C
( c-0) =c
So the length of line AB must also be c if it is a parallelogram
Let the coordinate of B be (x,y)
(x-a) =c
x = c+a
The height of the parallelogram is b by taking the difference of the y coordinates from A and D
A -D = b-0 = b
This must be the same form B and C
y -0 = b
y = b
The coordinates of B is ( c+a, b)