8 APLICA \( \rightarrow \) Desarrolla las siguientes opera- ciones \( y \) expresa el resultado en notación científica. a. \( \left(1,23 \times 10^{3}\right)\left(2,5 \times 10^{-5}\right)\left(3,45 \times 10^{-9}\right) \) b. \( \frac{5,28 \times 10^{12}}{2,67 \times 10^{3}}+3,46 \times 10^{9} \) c. \( \frac{\left(3,12 \times 10^{-5}+7,03 \times 10^{-4}\right) \times 8,3 \times 10^{8}}{4,32 \times 10^{3}} \)

Using long division 714/ 42

Which fraction is equivalent to \( 0 \overline{029 ?} \) A. \( \frac{29}{99} \) B. \( \frac{29}{100} \) C. \( \frac{29}{999} \) D. \( \frac{29}{1000} \)

Convert 32 centimeters into inches. (1 in = 2.54 cm)

11. State the temperature shown on the thermometer in the form: measurement \( \pm \) uncertainty 12. The uncertainty for the speedometer of a vehicle is \( 5 \% \) of the speedometer's reading. Calculate the minimum speed a vehicle could be travelling if its speedometer reads 60

A seamstress is using an old cloth measuring tape marked with units to \( 1 / 8 \) of an inch, but the problem is that the old measuring tape has stretched and always gives a slightly larger measurement. The tape is used to measure the length of a dress pattern and then the same tape is used to measure the width of the same pattern. A length of \( 6 \frac{7}{8} \) inches is measured. a) What can you say about the degree of accuracy of the measurement? b) What can you say about the degree of precision of the measurement?