Barisan dan Deret Aritmetika

Barisan dan Deret Aritmetika

10th Grade

5 Qs

quiz-placeholder

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Barisan dan Deret Aritmetika

Barisan dan Deret Aritmetika

Assessment

Quiz

Mathematics

10th Grade

Practice Problem

Hard

Created by

Siti Windawati

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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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