Advanced Math practice question

Answer: 3.5 or 7/2

4n² = 49, so n² = 49/4 and n = 7/2 = 3.5.

Common wrong answers

If you answered 7

7 takes the square root of 49 without dividing by 4 first.

If you answered 12.25

12.25 is n² (49/4), not n.

If you answered 1.75

1.75 is 7/4, dividing by 4 after taking the root instead of before.

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