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Mathematics 2010 WAEC Past Questions

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31

If x2 + kx + \(\frac{16}{9}\) is a perfect square, find the value of k

  • A. \(\frac{8}{3}\)
  • B. \(\frac{7}{3}\)
  • C. \(\frac{5}{3}\)
  • D. \(\frac{2}{3}\)
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32
If x km/h = y m/s, then y =
  • A. \(\frac{7}{18}\)x
  • B. \(\frac{11}{20}\)x
  • C. \(\frac{4}{15}\)x
  • D. \(\frac{5}{18}\)x
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33

The mean of the numbers 2, 5, 2x and 7 is less than or equal to 5. Find the range of the values of x

  • A. x \(\leq\) 3
  • B. x \(\geq\) 3
  • C. x < 3
  • D. x > 3
View Answer & Discuss (4) WAEC 2010
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
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34
In an athletic composition, the probability that an athlete wins a 100m race is \(\frac{1}{8}\) and the probability that he wins in high jump is \(\frac{1}{4}\). What is the probability that he wins only one of the events?
  • A. \(\frac{3}{32}\)
  • B. \(\frac{7}{3}\)
  • C. \(\frac{5}{3}\)
  • D. \(\frac{5}{16}\)
View Answer & Discuss WAEC 2010
35
In the diagram, < PSR = 220o, < SPQ = 58o and < PQR = 41o. Calculate the obtuse angle QRS.
  • A. 90o
  • B. 100o
  • C. 121o
  • D. 60o
View Answer & Discuss WAEC 2010
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208