B) Use the quadratic formula to find the value of t, t? + 16 = 10t.
SECTION : B (40 Marks)
11. a) In a circle o is the centre of the circle ,given that AO=BO=CO=radius
of the circle. If the size of angle AOB = 98° what is the size of angle ACO.
b) The mass off 40 students were recorded as follows:
Mass in kg
40-44
45-49
50-54
55-59
60-64
No. of students
5
8
10
11
6
Determine : i) the mean ii) the mode
iii) the median
12. a) A figure below is a cube ABCDEFGH of side 10 cm. Find,
i) the length AG ii) the size of angle between AG and the base
ABCD.