1. An engineer drawing states that a certain part has the following length: \( \begin{array}{l}4.4 \\ 4.0 \\ \mathrm{~mm}\end{array} \) Express the nominal value, tolerance and uncertainty for this measurement. ( 3 marks) nominal value: tolerance: uncertainty:

1. A partir de las siguientes funciones de oferta \( y \) demanda calcule el punto de equilibrio. \( \mathrm{Qd}=2750-75 \mathrm{P} \) 2. Estime el excedente del consumidor y del productor.

Aufgabe 3: Wie schreiben Sie als \( 1 \times 10^{\text {n }} \) die folgenden Begriffe? Nennen Sie je ein praktisches Beispiel (Abkürzung der Einheiten) ( 6 Punkte) Dezi, Mili, Mikro, Hekto, Kilo und Giga

(a) Given the complex number \( z \) and its conjugate \( \bar{z} \) satisfy the equation \( z \bar{z}+2 z=12+6 i \). Find the possible values of \( z \).

Session \( 2005 / 2006 \) 1. Given two complex numbers \( z_{1}=1+3 i \) and \( z_{2}=2-i \), express \( \frac{z_{1}+z_{2}}{z_{1} z_{2}} \) in the form of \( a+b i \), where \( a \) and \( b \) are real numbers. Hence, determine \( \left|\frac{z_{1}+z_{2}}{z_{1} z_{2}}\right| \).

Find the topology generated in \( R \) by the class of all closed sub-intervals of the type \( [a, a+11 \). ( 4 Marks)