Révisions brevet maths : qcm ou affirmations (2)
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
s calesse
Used 36+ times
FREE Resource
26 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
On considère la fonction f définie par f(x)=3x−7
L’image par f du nombre −1 est 2.
VRAI
FAUX
Answer explanation
3 x (-1)-7=-3-7=-10
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
VRAI
FAUX
Answer explanation
On développe
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
VRAI
FAUX
Answer explanation
On calcule.
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
On a lancé 15 fois un dé à six faces numérotées de 1 à 6 et on a noté les fréquences
d’apparition dans le tableau ci-contre.
La fréquence d’apparition du 6 est 0.
VRAI
FAUX
Answer explanation
On ajoute toutes ls fréquences données et on obtient une fraction égale à 1 donc la fréquence de 6 est donc bien 0 !
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
VRAI
FAUX
Answer explanation
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Un rectangle ABCD a pour longueur 160 cm et pour largeur 95 cm.
Les diagonales de ce rectangle mesurent exactement 186 cm.
VRAI
FAUX
Answer explanation
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
L'image de 2 par f est -2
f(-2)=0
f(0)=-2
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