91Ó°ÊÓ

Identify number as an exact value or an approximation. An inch is \(\frac{1}{12}\) of a foot.

Determine the accuracy (i.e., the number of significant figures) of number. $$ 63,040 $$

Determine the accuracy (i.e., the number of significant figures) of number. $$ 0.085 $$

Determine the accuracy (i.e., the number of significant figures) of number. $$ 8,0 \overline{0} 0 $$

Round number so that it has the indicated number of significant figures. $$ 21,837 \text { (three sig figs) } $$

Round number so that it has the indicated number of significant figures. Be sure to include trailing zeros or an overbar if necessary. $$ 13,997 \text { (four sig figs) } $$

The mountain we know as Mt. Everest is called Sagarmatha in Nepal and Chomolungma in Tibet. On December \(8,2020,\) it was jointly announced by Nepal and China that the summit has an elevation of \(29,031.69 \mathrm{ft}\), replacing the previously accepted elevation of 29,029 \(\mathrm{ft}^{3}\). $$ \text { Round } 29,031.69 \mathrm{ft} \text { to three sig figs. } $$

The mountain we know as Mt. Everest is called Sagarmatha in Nepal and Chomolungma in Tibet. On December \(8,2020,\) it was jointly announced by Nepal and China that the summit has an elevation of \(29,031.69 \mathrm{ft}\), replacing the previously accepted elevation of 29,029 \(\mathrm{ft}^{3}\). $$ \text { Round } 29,031.69 \mathrm{ft} \text { to six sig figs. } $$

Use a calculator to multiply or divide as indicated. Then round to the appropriate level of accuracy. $$ 8.75 \cdot 12.25 $$

Use a calculator to multiply or divide as indicated. Then round to the appropriate level of accuracy. $$ 355.12 \cdot 1.8 $$