1993 - WAEC Mathematics Past Questions and Answers - page 4

If sin x = 12/13, where 0° < x < 90°, find the value of 1 - cos\(^2\)x

The angle of elevation of the top of a tower from a point on the horizontal ground, 40m away from the foot of the tower is 30o. Find the height of the tower.

At a point 500m from the base of a water tank the angle of elevation of the top of the tank is 45o. Find the height of the tank,

Find the median of the following set of numbers: 28, 29, 39, 38, 33, 37, 26, 20, 15, 25

The table above shows the scores of a group of 40 students in a physics test.

If the mode is m and the median is n, then (m,n) is

The table above shows the scores of a group of 40 students in a physics test

What is the mean of the distribution?

Find the median of the set of numbers 12, 15, 13, 14, 12, 12.

The distribution by state of 840 students in the Faculty of Science of a Nigerian University in a certain session is as follows:

In a pie chart drawn to represent this distribution, the angle subtended by Ondo is