Which value of c makes x2-7x+c a perfect square?
Correct answer: B. 49/4
- A. 7/2
- B. 49/4
- C. 7
- D. 49
Explanation
Only this value gives the correct solution as mentioned in the question, this is correct.
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Quantitative reasoning applies arithmetic and basic algebra to numerical relationships, including percentages, ratios, averages, fractions, proportions, profit and loss, rates, time, work and measurement. Questions focus on translating words into equations, choosing an efficient method and checking whether the result is numerically reasonable.
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