Penjelasan dengan langkah-langkah:
(1) 270.000.000 = 2,7 × 10^8
(2.) f(x) = x²+5x–24
f(x) = (x + 8)(x – 3)
f(3) = (3 + 8)(3 – 3)
f(3) = 11×0
f(3) = 0
(3) AB = 3 cm
AC = 5 cm
BC = √(AC² – AB²)
BC = √(5² – 3²)
BC = √(25 – 9)
BC = √16
BC = 4 cm
(4) 2x² ≤ 4 – 2x
2x² + 2x – 4 ≤ 0
2(x² + x –2) ≤ 0
(x + 2)(x – 1) ≤ 0
x = –2 , x = 1
HP = { –2 ≤ x ≤ 1 }
(5) bilangan bulat yang bukan
bilangan negatif dan juga yang bukan bilangan
asli adalah 0 ( nol )
semoga bermanfaat...............
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Penjelasan dengan langkah-langkah:
(1) 270.000.000 = 2,7 × 10^8
(2.) f(x) = x²+5x–24
f(x) = (x + 8)(x – 3)
f(3) = (3 + 8)(3 – 3)
f(3) = 11×0
f(3) = 0
(3) AB = 3 cm
AC = 5 cm
BC = √(AC² – AB²)
BC = √(5² – 3²)
BC = √(25 – 9)
BC = √16
BC = 4 cm
(4) 2x² ≤ 4 – 2x
2x² + 2x – 4 ≤ 0
2(x² + x –2) ≤ 0
(x + 2)(x – 1) ≤ 0
x = –2 , x = 1
HP = { –2 ≤ x ≤ 1 }
(5) bilangan bulat yang bukan
bilangan negatif dan juga yang bukan bilangan
asli adalah 0 ( nol )
semoga bermanfaat...............