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Monday, 18 May 2026
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Mathematics Past Questions and Answers

Waec Mathematics Questions

Question 436:
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
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Question 437:
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
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Question 438:
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
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Question 439:
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
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Question 440:
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
View Answer & Explanation