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If the point \(P\) on the number line represents the number \(\sqrt{49}+\sqrt{16}\), what is the coordinate of \(P\)?

Answer and explanation

Correct answer: 11

Since \(\sqrt{49}=7\) and \(\sqrt{16}=4\), we get \(\sqrt{49}+\sqrt{16}=7+4=11\). Therefore, the coordinate of point \(P\) on the number line is \(11\). The value 65 is the product \(7\times 4\), not the required sum. Exam tip: evaluate each square root first and then perform the indicated operation.

Related tags

Number LinePerfect SquaresSquare RootsReal NumbersRepresenting Real Numbers On The Number LinePolynomialsMathematicsClass 10 Mcq

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