Advanced MathEasyPossible value from a square
Advanced Math practice question
If x² = 121, which of the following is a possible value of x?
- A. −11Correct
- B. 60.5
- C. 121
- D. 12
Answer: A. −11
(−11)² = 121.
Why the other answers are wrong
- B. 60.5
- 60.5 halves 121.
- C. 121
- 121² is far larger than 121.
- D. 12
- 12² = 144.
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