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Mathematics 1989 JAMB Past Questions

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11

Find p in terms of q if \(\log_{3} p + 3\log_{3} q = 3\)

  • A. (\(\frac{3}{q}\))3
  • B. (\(\frac{q}{3}\))\(\frac{1}{3}\)
  • C. (\(\frac{q}{3}\))3
  • D. (\(\frac{3}{q}\))\(\frac{1}{3}\)
View Answer & Discuss (4) JAMB 1989
12

What are the values of y which satisfy the equation \(9^{y} - 4 \times 3^{y} + 3 = 0\) ?

  • A. -1 and 0
  • B. -1 and 1
  • C. 1 and 3
  • D. 0 and 1
View Answer & Discuss (2) JAMB 1989
13

Make R the subject of the formula S = \(\sqrt{\frac{2R + T}{2RT}}\)

  • A. R = \(\frac{T}{(TS^2 + 1)}\)
  • B. R = \(\frac{T}{2(TS^2 - 1)}\)
  • C. R = \(\frac{T}{2(TS^2 + 1)}\)
  • D. R = \(\frac{R}{2(TS^2 + 1)}\)
View Answer & Discuss (6) JAMB 1989
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14

The cost of dinner for a group of students is partly constant and partly varies directly as the number of students. If the cost is N74.00 when the number of students is 20 and N96.00 when the number of students is 30, find the cost when there are 15 students

  • A. N68.50
  • B. N63.00
  • C. N60.00
  • D. N52.00
View Answer & Discuss (1) JAMB 1989
15

If \(f(x) = 2x^2 - 5x + 3\), find f(x + 1).

  • A. 2x2 - x
  • B. 2x2 - x + 10
  • C. 4x2 + 3x + 2
  • D. 4x2 + 3x + 12
View Answer & Discuss JAMB 1989
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