MEDIA ARTMETICĂ, MEDIA ARITMETICĂ PONDERATĂ,MEDIA GEOMETRICĂ

Quiz
•
Mathematics
•
7th Grade
•
Hard

Corina Purcărea
Used 17+ times
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Media aritmetică a numerelor
şi este egală cu:
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Media geometrică a numerelor 4 şi 25 este egală cu:
3.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Media aritmetică ponderată a numerelor 2 şi 5 cu ponderile 3 şi 2 este egală cu:
8
5
3,6
3,2
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dacă media geometrică a numerelor x şi 9 este egală cu 6, atunci x este egal cu:
2
1
4
0
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Andrei are la matematică următoarele note: 6; 8; 9; 10; 7, iar la teză a obţinut nota 9. Ce medie are Andrei la matematică?
7
8,50
8
9
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Media geometrică a numerelor x şi y este egală cu:
6
4
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Dacă media geometrică a două numere este 40, atunci produsul lor este:
80
1000
1600
700
8.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Completaţi şirul de mai jos cu încă 1 termen ţinând cont de proprietatea că pentru oricare trei termeni consecutivi ai şirului, termenul din mijloc reprezintă media geometrică a celorlalţi doi :
6; 12; 24; 48; ….; ….;
Alegeţi varianta corectă!
72
85
96
Nici un răspuns nu e corect.
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