Waec Mathematics Past Questions and Answers

Question 436:

• WAEC 1995

Use the graph of y = 3x\(^2\) + x - 7 above to answer the question
What is the minimum value of y?

A. -10
B. -7
C. -4
D. -1
E. 2

Question 437:

• WAEC 1995

Use the graph of y = 3x\(^2\) + x - 7 above to answer the question
Find the roots of the equation y=3x\(^2\) + x - 7

A. 1.0 And -1.2
B. 1.1and-1.3
C. 1.4and-1.7
D. 2.0 and -1.9
E. 2.4 and -2.0

Question 438:

• WAEC 1995

In the diagram above. |AB| = 12cm, |AE| = 8cm, |DCl = 9cm and AB||DC. Calculate |EC|

A. 10cm
B. 9cm
C. 8cm
D. 7cm
E. 6cm

Question 439:

• WAEC 1995

The diagonals AC and BD of a rhombus ABCD are 16cm and 12cm long respectively. Calculate the area of the rhombus.

A. 24cm²
B. 36cm²
C. 48cm²
D. 60cm²
E. 96cm²

Question 440:

• WAEC 1995

A water tank of height \(\frac{1}{2}\) m has a square base of side \(1\frac{1}{2}\) m. lf it is filled with water from a water tanker holding 1500 litres, how many litres of water are left in the water tanker? [1000 litres = 1m\(^3\)]

A. 37.5litres
B. 375 litres
C. 3750 litres
D. 37500 litres
E. 375000 litres