62. Linda finished her experiment and determined that a certain packaging increased the shelf-life of a product. Which step in the experimental process is this? A. Define the problem B. Evaluate the results C. Identify steps of experiment D. State the research question

4) Lors de la réaction chimique d'un acide organique sur un alcool, l'hydrogène n'appartenant pas au groupement -OH de l'eau formée et se trouvant dans celle-ci provient de: \( \begin{array}{llll}\text { a) L'alcool } & \text { b) L'acide } & \text { c) L'Ester } & \text { d) Pas de bonne réponse. }\end{array} \)

2. \( \frac{1}{3} x^{3}-\frac{4}{5}=\frac{13}{40} \)

Evaluate the integral using partial fractions \( I=\int \frac{10 x^{2}+4 x+2}{\left(1+4 x^{2}\right)(x+2)} d x \) A. \( \frac{1}{4} \ln \left|1+4 x^{2}\right|+2 \ln |x+2|+C \) B. \( -\frac{1}{4} \ln \left|1+4 x^{2}\right|+\ln |x+2|+C \) C. \( \frac{1}{2} \ln \left|1+4 x^{2}\right|+4 \ln |x+2|+C \) D. None of the options E. \( -\frac{1}{2} \ln \left|1+4 x^{2}\right|-4 \ln |x+2|+C \)

13. Dört basamaklı dörı farkıı doğal sayının top- lamı 34005 olduğuna göre, bu sayıların en küçüğü en az kaçtır?

11. Write the place values of the und 7. \( 156,253=\square: 10,346,924,625=\square \) 8. \( 645,102,069=\square: 11,25,10,584=\square \) ; \( 12.29,32,15,024=\square \) in the blanks using the corr 9. \( 15,613,007=\square \)