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Verified answer
1)Luas = 324 cm²
s² = 324 cm²
s = √(324 cm²)
s = 18 cm
jawaban B
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2)
5 3/5 x 5/7
= 28/5 x 5/7
= 28/7
= 4
jawaban C
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3)
24/90
= (24 : 6) / (90 : 6)
= 4 / 15
Jawaban A
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4)
0,3 = 0,3
12/20 = 6/10 = 0,6
1/2 = 5/10 = 0,5
15% = 15/100 = 0,15
Urutan dari terbesar
0,6 ; 0,5 ; 0,3 ; 0,15
12/20 ; 1/2 ; 0,3 ; 15%
Jawaban B
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5)
Faktorisasi prima
40 = 2³ x 5
48 = 2⁴ x 3
64 = 2⁶
FPB = 2³ = 8
jawaban B
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6)
30³ - 6³ + 11³
= 27.000 - 216 + 1.331
= 28.115
Jawaban tidak ada di pilihan
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7)
Faktorisasi Prima
56 = 2³ x 7
72 = 2³ x 3²
84 = 2² x 3 x 7
KPK = 2³ x 3² x 7
= 8 x 9 x 7
= 504
Jawaban D
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8)
√625 - √16 x √25
= 25 - 4 x 5
= 25 - 20
= 5
Jawaban A