Soal Perbaikan Matematika Kelas 8
Quiz
•
Mathematics
•
8th Grade
•
Hard
Devi Rismayanti
Used 2+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Perhatikan barisan bilangan 2, 5, 10, 17, ..... Rumus suku ke-n adalah ....
Un=2n+1
Un=3n-1
Un=2n3-1
Un=n2+1
2.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Diketahui barisan bilangan 12, 20, 30, 42, 56, …. Suku ke-7 adalah ….
90
80
70
60
3.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Barisan bilangan di bawah ini yang rumus suku ke-n-nya Un = -2n - 5 adalah ….
-5, -7, -9, 11, 13, ….
-3, -5, -7, -9, -11, ….
-7, -9, -11, -13, -15, …
-1, -2, -3, -4, -5, ….
4.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Misalkan suku ke-n suatu barisan bilangan Un = n(n2 + 4). Suku ke-20 barisan bilangan tersebut adalah ….
8.800
8.080
4.040
4.000
5.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Dari suatu barisan bilangan 1, 4, 9, 16, 25, 36, …., ke 10. Berapakah pola bilangan ke 10 dalam pola bilangan tersebut …
100
200
300
400
6.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Pada barisan 2, 5, 10, 16, 26, 37, 49, 65, …, terdapat dua suku yang tidak mengikuti aturan. Bilangan-bilangan tersebut adalah ….
16 seharusnya 17 dan 37 seharusnya 36
16 seharusnya 17 dan 49 seharusnya 50
10 seharusnya 9 dan 26 seharusnya 25
5 seharusnya 4 dan 26 seharusnya 25
7.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Suku-suku pada suatu barisan antara lain 47, 43, 39, 35, …. Dua suku berikutnya dari barisan tersebut adalah ….
32 dan 29
33 dan 28
31 dan 27
30 dan 26
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