Barisan dan Deret Aritmetika

Quiz
•
Mathematics
•
10th Grade
•
Hard
Siti Windawati
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rumus umum dari barisan aritmetika -7, -2, 3, 8, ... adalah ⋯⋅
Un = 5n - 2
Un = 5n + 2
Un = 5n - 5
Un = -5n + 2
Un = 5n - 12
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Rumus Sn dari barisan aritmetika yang memiliki rumusan berikut: Un = 4n - 9, adalah…
Sn = 2n2 - 7n
Sn = n2 - 7n
Sn = 2n2 + 7n
Sn = 7n2 + 2n
Sn = 3n2 + 7n
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui barisan aritmetika: 9, 5, 1, -3, .... Suku ke-15 barisan tersebut adalah ⋯⋅
-65
-47
65
47
37
4.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Diketahui : a + (a + 3) + (a + 6) + ... + 98 = 1635
Jika a bilangan bulat positif, maka nilai a =
7
9
11
13
15
5.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Sebuah pizza berbentuk lingkaran dengan diameter 30 cm dipotong menjadi 6 bagian berbentuk juring. Sudut pusat dari 6 potongan piza tersebut membentuk barisan aritmetika. Jika besar sudut pusat potongan pizza terkecil sama dengan 1/5 dari besar sudut pusat potongan piza terbesar, maka berapakah luas potongan pizza terbesar?
196 9/3
196 7/3
169 3/7
196 3/7
169 1/7
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