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3) What type of graph should be made for the experiment in Model 1? * 1 point Scatterplot Bar graph Pie chart 4) What is the relationship between the number of paper clips and distance * 1 point that the paper airplane traveled in Model 1? As the number of paperclips increases, the distance decreases. As the number of paperclips decreases, the distance increases. As the number of paperclips increases, the distance increases.

Partie A: Évaluation des ressources (15,5points) Exercice 1: ( 3,5 points) Le plan complexe \( P \) est muni d'un repère orthonormé direct \( (O ; \vec{u} ; \vec{v}) \). A et \( B \) sont des points du plan d'affixes respectives \( i \) et \( -2+i . F \) est l'application de \( P-\{A\} \) vers \( P \) qui, à tout point \( M(z) \) associe le point \( M^{\prime}\left(z^{\prime}\right) \) tel que \( z^{\prime}=i\left(\frac{z+2-i}{z-i}\right) \). Pour tout entier naturel \( n \), on désigne par \( C_{n} \) le point d'affixe \( (\sqrt{3}-i)^{n} \). On considère dans \( \mathbb{C} \) l'équation \( (E): z^{2} \cos ^{2} \alpha-2 z \sin 2 \alpha+1=0 \) où \( \left.\alpha \in\right] 0 ; \frac{\pi}{2}[ \). 1) Pour quelles valeurs de \( n \) les points \( C_{n} \) appartiennent-ils à l'axe des réels ? 2) Déterminent \( n \) pour que les points \( C_{n} \) appartiennent à la première bissectrice. \( 0,75 p t \) 3) Déterminer l'ensemble des points invariants par \( F \). 0,5pt 4) Déterminer les parties réelle et imaginaire de \( z^{\prime} \) 0,5pt 5) Résoudre dans \( \mathbb{C} \), l'équation \( (E) \). \( 1 p t \) 0,75pt

Soit A une matrice carrée d'ordre \( N \) inversible, \( b, c, f \in \mathbb{R}^{N} \). Soient \( \alpha, \gamma \in \mathbb{R} \). On cherche à résoudre le système suivant avec \( x \in \mathbb{R}^{N}, \lambda \in \mathbb{R} \) \[ \left\{\begin{array}{l}A x+b \lambda=f \\ c x+\alpha \lambda=\gamma\end{array}\right. \] 1) Ecrire le système ci-dessus sous la forme :My=g, avec \( M \) matrice carrée \( N+1, y \in \mathbb{R}^{N+1}, g \in \mathbb{R}^{N+1} \) Donner l'expression de \( M, y \) et \( g \) 2) Donner une relation entre A,b,c et \( \alpha \) qui soit une condition nécessaire et sL pour que le système ci-dessus soit inversible. Dans toute la suite on supposera, que cette relation est vérifiée.

Part II. The following problems have exactly one best answer. Chose the correct answer. 1. Which of the following compound propositions is necessarily true? A. \( p \wedge \neg p \) C. \( p \Leftrightarrow \neg p \) B. \( p \vee \neg p \) D. . \( (p \vee \neg p) \Rightarrow p \) 2. Which of the following represents a set? A. The Collection of good students in a class. C. \( \{a, b\}, c \). B. The collection of cows with 6 legs. D. The collection of interesting birds. 3. Which of the following is a proposition? A. What is your name? C. May God bless you! B. \( 2 x-3=0 \) D. 123 is a prime number. 4. Let A be any set and \( \mathrm{P}(\mathrm{A}) \) be the power set of A , which of the following is true? A. \( \{\varnothing\} \subseteq A \) B. \( \emptyset \in A \) C. \( \emptyset \in P(A) \) D. \( A \subseteq P(A) \) 5. Which of the following statement is true? A. \( (\forall x \in R)(\exists y \in R)(2 x+y=-4) \) C. \( (\forall x \in R)(\exists y \in R)(x y=1) \) B. \( (\exists x \in R)(\exists y \in R)(|x y|=-3) \) D. \( (\exists x \in R)(\forall y \in R)(2 x+y=-4 \) 6. Let A be any set with certain number of elements, then which of the following is false? A. A may contain 5 proper subsets C. A may contain 16 subsets B. A may contain only one proper subset D. A may contain only one subset 7. Let p and q be propositions which of the following implies that. \( p \wedge q \) is true. A. . \( p \vee q \) is true B. . \( \neg p \wedge q \) is false C. \( p \Rightarrow q \) is true D. \( p \Rightarrow \neg q \) is false

Part II. The following problems have exactly one best answer. Chose the correct answer. 1. Which of the following compound propositions is necessarily true? A. \( p \wedge \neg p \) C. \( p \Leftrightarrow \neg p \) B. \( p \vee \neg p \) D. . \( (p \vee \neg p) \Rightarrow \mathrm{p} \) 2. Which of the following represents a set? A. The Collection of good students in a class. C. \( \{a, b\}, c \). B. The collection of cows with 6 legs. D. The collection of interesting birds. 3. Which of the following is a proposition? A. What is your name? C. May God bless you! B. \( 2 x-3=0 \) D. 123 is a prime number. 4. Let A be any set and \( \mathrm{P}(\mathrm{A}) \) be the power set of A , which of the following is true? A. \( \{\varnothing\} \subseteq A \) B. \( \emptyset \in A \) C. \( \emptyset \in P(A) \) D. \( A \subseteq P(A) \) 5. Which of the following statement is true? A. \( (\forall x \in R)(\exists y \in R)(2 x+y=-4) \) C. \( (\forall x \in R)(\exists y \in R)(x y=1) \) B. \( (\exists x \in R)(\exists y \in R)(|x y|=-3) \) D. \( (\exists x \in R)(\forall y \in R)(2 x+y=-4 \) 6. Let A be any set with certain number of elements, then which of the following is false? A. A may contain 5 proper subsets C. A may contain 16 subsets B. A may contain only one proper subset D. A may contain only one subset 7. Let p and q be propositions which of the following implies that. \( p \wedge q \) is true. A. . \( p \vee q \) is true B. . \( \neg p \wedge q \) is false C. \( p \Rightarrow q \) is true D. \( p \Rightarrow \neg q \) is false