# Waecmaths

Title waecmaths question
Question 40

Simplify $\frac{{{(p-r)}^{2}}-{{r}^{2}}}{2{{p}^{2}}-4pr}$

Question 41

In the diagram, O  is the centre of the circle $\angle QPS={{100}^{\circ }},\text{ }\angle PSQ={{60}^{\circ }}\text{ and }\angle QSR={{80}^{\circ }}$ Calculate $\angle SQR$

Question 42

A bag contains 5 red and 4 blue identical balls. If two balls are selected at random from the bag, one after the other, with replacement, find the probability that the is red and the second blue

Question 43

The relation $y={{x}^{2}}+2x+k$passes through (2,0). Find the value of k

Question 44

Find the next three terms of the sequence: 0, 1, 2, 3, 5, 8, ….

Question 45
Question 46

The ratio of the exterior angle to the interior angle of a regular polygon 1:11. How many sides has the polygon?

Question 47

Halima is n years old. Her brother’s age is 5 years more half of her age. How old is her brother?

Question 48

In the diagram $\overline{MN}$is a chord of a circle KMN centre O and radius 10cm. If $\angle MON={{140}^{\circ }}$, find, correct to the nearest cm, the length of the chord MN

Question 49

An object is 6m from the base of a mast. If the angle of depression of the object from the top of the mast is 50o, find, correct to 2 decimal places, the height of the mast

Question 50

From the diagram which of the following is true?