Mathematics 4024 · O Level · Powers and roots

Powers and roots — practice question

This table lists square roots, correct to $4$ significant figures, for a selection of numbers from $31.0$ up to $32.9$.
(a)[1]

Calculate the difference between $\sqrt{32.5}$ and $\sqrt{31.3}$.

(b)[1]

Calculate an estimate for $\sqrt{32.25}$.

(c)[1]

Calculate the number whose square root is $56.39$.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: Correct response $0.106$.

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