quizz grigorescu maria

quizz grigorescu maria

9th Grade

10 Qs

quiz-placeholder

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quizz grigorescu maria

quizz grigorescu maria

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

Maria Grigorescu

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Un sir de numere real cu primul termen nenul, in care orice termen incepand cu al doilea se obtine din termenul precedent inmultit cu acealsi nr fixat nenul se numeste ..... .

progresie aritmetica

progresie geometrica

ecuatie

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Se considera o progresie aritmetica cu ratia 4 si a6 = -10. Calculati a8

-2

2

-30

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Se considera o progresie aritmetica cu a1 = 2 si a20 = 98

Calculati a1 + a2 + ... + a20

20

500

1000

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Se considera o progresie aritmetica cu ratia 3 si a1 = 2. Calculati a6

17

  • -17

7

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Se considera o progresie aritmetica cu a2=7 si a3= 1

Determinati ratia acestei progresii

-6

8

6

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sa se determine primul termen al progresiei geometrice (bn) stiind ca b7 = 16 si q = 2 .

2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Progresia geometrica este un sir de

numere

litere

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