
persamaan kuadrat (2)
Authored by eka ahtha
Mathematics
9th Grade
Used 2+ times

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5 questions
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1.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
1. Seorang anak berdiri di atas tebing yang memiliki ketinggian 5 m dari permukaan tanah, melempar bola ke atas dengan kecepatan awal 20 m/s (anggap bola dilepaskan ketika berada 1 m di atas permukaan tebing di mana anak tersebut berdiri). Tentukan:
(b) waktu yang dibutuhkan agar bola tersebut sampai di permukaan tanah.
2.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Jumlah dua buah bilangan sama dengan 30. Jika hasil kali kedua bilangan itu sama dengan 200, tentukanlah bilangan tersebut dan periksa kembali apakah bilangan tersebut benar!
3.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Selembar karton berbentuk persegi panjang akan dibuat kotak tanpa tutup dengan cara membuang persegi seluas 3 × 3 cm2 di masing-masing pojoknya. Apabila panjang alas kotak 2 cm lebih dari lebarnya dan volum kotak itu adalah 105 cm3. Tentukanlah panjang dan lebar alas kotak tersebut!
4.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Kuadrat suatu bilangan dikurangi empat kali bilangan itu sama dengan -3.
Tentukan bilangan tersebut.
5.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
1. Seorang anak berdiri di atas tebing yang memiliki ketinggian 5 m dari permukaan tanah, melempar bola ke atas dengan kecepatan awal 20 m/s (anggap bola dilepaskan ketika berada 1 m di atas permukaan tebing di mana anak tersebut berdiri). Tentukan:
(a) tinggi bola setelah 3 detik
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