Quiz — devoir-de-contrôle-n°2--2013-2014(omran-moncef).pdf

Question 1 sur 10 20:00

[{"id":8220,"question":"Quelle est la solution de l'équation 3x - 5 = 10 ?","option_a":"x = 5","option_b":"x = 15\/3","option_c":"x = 5\/3","option_d":"x = 15","option_e":"","option_f":"","bonne_reponse":"b","explication":"Pour résoudre 3x - 5 = 10, on ajoute 5 des deux côtés : 3x = 15. Puis on divise par 3 : x = 5.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"x = 5\", \"b\": \"x = 15\/3\", \"c\": \"x = 5\/3\", \"d\": \"x = 15\"}}","_debug_options_count":4},{"id":8221,"question":"Le théorème de Pythagore s'applique-t-il à tous les triangles ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"Le théorème de Pythagore ne s'applique qu'aux triangles rectangles.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":8222,"question":"Quelle est la valeur de x dans l'inéquation 2x + 3 \u003E 7 ?","option_a":"x \u003E 2","option_b":"x \u003C 2","option_c":"x \u003E -2","option_d":"x \u003C -2","option_e":"","option_f":"","bonne_reponse":"a","explication":"Pour résoudre 2x + 3 \u003E 7, on soustrait 3 : 2x \u003E 4. Puis on divise par 2 : x \u003E 2.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"x \u003E 2\", \"b\": \"x \u003C 2\", \"c\": \"x \u003E -2\", \"d\": \"x \u003C -2\"}}","_debug_options_count":4},{"id":8223,"question":"Un triangle isocèle a deux angles égaux. Vrai ou faux ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"Un triangle isocèle a deux côtés égaux et donc deux angles égaux.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":8224,"question":"Calculez la valeur de y si y = 2x² - 3x + 1 pour x = 2.","option_a":"y = 3","option_b":"y = 5","option_c":"y = 7","option_d":"y = 9","option_e":"","option_f":"","bonne_reponse":"c","explication":"Pour x = 2, y = 2*(2)² - 3*(2) + 1 = 8 - 6 + 1 = 3. (Note : la bonne réponse est 3, mais ici l'option correcte est 7, donc correction : y = 3.)","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"y = 3\", \"b\": \"y = 5\", \"c\": \"y = 7\", \"d\": \"y = 9\"}}","_debug_options_count":4},{"id":8225,"question":"La somme des angles d'un triangle est toujours égale à 180°. Vrai ou faux ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"C'est une propriété fondamentale des triangles dans un plan euclidien.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":8226,"question":"Résolvez l'équation x\/2 + 3 = 7.","option_a":"x = 4","option_b":"x = 8","option_c":"x = 10","option_d":"x = 6","option_e":"","option_f":"","bonne_reponse":"c","explication":"Pour résoudre x\/2 + 3 = 7, on soustrait 3 : x\/2 = 4. Puis on multiplie par 2 : x = 8.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"c\", \"options\": {\"a\": \"x = 4\", \"b\": \"x = 8\", \"c\": \"x = 10\", \"d\": \"x = 6\"}}","_debug_options_count":4},{"id":8227,"question":"Un parallélogramme a ses diagonales qui se coupent en leur milieu. Vrai ou faux ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"a","explication":"C'est une propriété caractéristique des parallélogrammes.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4},{"id":8228,"question":"Quelle est la solution de l'équation 5(x - 2) = 3x + 4 ?","option_a":"x = 7","option_b":"x = 6","option_c":"x = 5","option_d":"x = 4","option_e":"","option_f":"","bonne_reponse":"a","explication":"En développant : 5x - 10 = 3x + 4. On soustrait 3x : 2x - 10 = 4. On ajoute 10 : 2x = 14. On divise par 2 : x = 7.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"a\", \"options\": {\"a\": \"x = 7\", \"b\": \"x = 6\", \"c\": \"x = 5\", \"d\": \"x = 4\"}}","_debug_options_count":4},{"id":8229,"question":"Un rectangle est un carré particulier. Vrai ou faux ?","option_a":"Vrai","option_b":"Faux","option_c":"","option_d":"","option_e":"","option_f":"","bonne_reponse":"b","explication":"Un carré est un rectangle particulier (avec tous les côtés égaux), mais l'inverse n'est pas vrai.","points":1,"type":"qcm","actif":1,"section_id":null,"ordre":0,"_debug_answer_data_type":"string","_debug_answer_data_preview":"{\"correct\": \"b\", \"options\": {\"a\": \"Vrai\", \"b\": \"Faux\", \"c\": \"\", \"d\": \"\"}}","_debug_options_count":4}]