Write each set in the indicated form. If you need to use "..." to indicate a pattern, make sure to list at least four elements of the set. \( \begin{array}{l}\text { (a) Roster form: }\{0,1,2,3, \ldots\} \\ \text { Set-builder form: (Choose one) } \\ \text { (b) Set-builder form: }\{y \mid y \text { is an integer and }-3 \leq y \leq 0\} \\ \text { Roster form: } \square\end{array} \)

8 En vektor \( \vec{u}=(3, b) \) har längden \( \sqrt{13} \) l.e. Bestäm talet \( b \).

A sewage treatment plant discharges a pollutant with a concentration of \( 19 \mathrm{mg} / \mathrm{L} \). The plant's total discharge is 0.3 MGD (millions of gallons per day). Determine the rate of pollutant released in pounds day. Give your answer accurate to at least two decimal places.

On considère un couple de lapins nouveaux-nés, un mâle et une femelle. Les lapins sont capables de se reproduire dès l'âge d'un mois et la gestion dure également un mois. Nous supposons que la femelle donne à chaque fois naissance à un male et à une femelle. 4. Déterminer le nombre de lapins le dixième mois.

A sewage treatment plant discharges a pollutant with a concentration of \( 18 \mathrm{mg} / \mathrm{L} \). The plant's total discharge is 0.15 MGD (millions of gallons per day). Determine the rate of pollutant released in pounds day. Give your answer accurate to at least two decimal places.

Work out the \( n \)th term of the following number patterns. a) \( 2,4,6,8, \ldots \) b) \( 3,5,7,9, \ldots \) c) \( 5,8,11,14, \ldots \) d) \( 1,5,9,13, \ldots \) e) \( 12,22,32,42, \ldots \) f) \( 2,8,14,20, \ldots \) g) \( 3,4.5,6,7.5, \ldots \)