Неравенства 7 клас - 6.04.2020

Quiz
•
Mathematics
•
7th Grade
•
Medium
Юлия Генова
Used 11+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Решете неравенство
x2 - 4x + 4 ≤ 0.
(-∞; 2]
(-∞; +∞)
(-∞: 2): (2; +∞)
x = 2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
-2x x+3
x -1
x -1
x 1
x 1
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
( - ; 0,25]
[0,25 ;+ )
( - : 4]
[4;+ )
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
х > 5
а)
б)
в)
г)
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
В триъгълника ABC < BAC = 500 и < ABC = 550 . Кое от
неравенствата е вярно?
a < b < c
a < c < b
b < c < a
c < b < a
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Дължините в сантиметри на страните на триъгълник могат да са:
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Известно е, че х е цяло число, по-голямо от 5.
(1) За коя стойност на х точката D е среда на отсечката AB?
(2) Кои са всички възможни стойности на х, за които с отсечките AC, CD и DB може да се построи триъгълник с периметър по-малък от 48 cm?
(1) – 6 cm
(2) – 7 cm и 8 cm
(1) – 6 cm
(2) – 6 cm ; 7 cm и 8 cm
(1) – 5 cm
(2) – 6 cm ; 7 cm и 8 cm
(1) – 6 cm
(2) – 7 cm ; 8 cm и 9 cm
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