Correct to $4$ significant figures, ${{7.156}^{2}}\approx 51.21$, without the use of calculator,

Question

Correct to $4$ significant figures, ${{7.156}^{2}}\approx 51.21$, without the use of calculator, find the value of ${{71.56}^{2}}$. Correct to $4$ significant figures, ${{14.73}^{3}}\approx 3196$, without the use of calculator, find the value of ${{0.01473}^{3}}$.

Accepted Answer

(a) Approximately $5121$. (b) Approximately $0.000003196$.

Using Given Approximations to Evaluate Powers (Without a Calculator)

Using Given Approximations to Evaluate Powers (Without a Calculator)

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