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Given that x2 + y2 + k = 60 and x = \(\sqrt{10}\) when y...

Mathematics
NECO 2008

Given that x2 + y2 + k = 60 and x = \(\sqrt{10}\) when y = 4, find the value of k.

  • A. 56
  • B. 34
  • C. 32
  • D. -34
  • E. -56
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Correct Answer: Option B
Explanation

x\(^2\) + y\(^2\) + k = 60

(√10)\(^2\) + (4)\(^2\) + k = 60

k + 10 + 16 = 60

k =  60 - 26

k = 34


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