WAEC Mathematics 2022 Objective — Question 18
Question 18 of 50 from the West African Examinations Council (WAEC) Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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Make t the subject of k = m√[(t−p)/r].
- A. t=(rk²+p)/m²
- B. t=(rk²+pm²)/m²Correct
- C. t=(rk²−p)/m²
- D. t=(rk²+p²)/m²
Explanation
Squaring both sides: k²=m²(t−p)/r. Multiplying by r/m²: t−p=k²r/m². So t=(k²r+pm²)/m².
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