# NURUL FIKRI SURABAYA.

## Presentasi berjudul: "NURUL FIKRI SURABAYA."— Transcript presentasi:

|http://nurulfikrisurabaya.co.cc|@nf_sby NURUL FIKRI SURABAYA

46. 47. |http://nurulfikrisurabaya.co.cc|@nf_sby

48. Sisi Bangun Persegi = 4 + 6 + 3 = 13 Segitiga D memiliki : Alas : 6, Tinggi : 13 – 6 =7 Jadi Luasnya D = 21 49. |http://nurulfikrisurabaya.co.cc|@nf_sby

50. 51. |http://nurulfikrisurabaya.co.cc|@nf_sby

52. 53. 3x + y = 5 x – y = -1 4x = 4  x = 1,y=2 2ax + by =-6  2a.1 + b.2 =-6  a+b=-3 54. Sudah Jelas, D |http://nurulfikrisurabaya.co.cc|@nf_sby

55. f(x+1) = x -3  f(x+1) = (x+1) – 4 f(x) = x – 4  f -1 (x) = x +4 dan g(x) = x 2 –2x (f -1 o g)(x)= f -1 (g(x)) = f -1 (x 2 –2x) = x 2 –2x +4 56. 2011 2012 L : L 1,05L P : P 1,2P Tot : L + P 1,05L+1,2P 1,05L = 315  L= 300 ribu ; Tot 2012 = 1,1 Tot 2011 315 + 1,2P = 1,1 ( 300 + p)  p=150 Jadi Tot =300 +150 = 450 |http://nurulfikrisurabaya.co.cc|@nf_sby

57. 2x – y > 2 X + 2y > 6 (2,2) -2-2 Nilai maximum di ( 2,2 ), tidak ada nilai minimum |http://nurulfikrisurabaya.co.cc|@nf_sby

58. Barisan geometri :3 x y→ Barisan aritmatika :x y 18→ 2y = 18 + x Subs. → ×3 (2x - 9)(x - 6) = 0 ►x = 6 →2y = 18 + 6 y = 12 Jadi x.y = 6.12 = 72 |http://nurulfikrisurabaya.co.cc|@nf_sby

59. |B| = (a + c)(-d) – (-c)(b + d) = -ad – cd + bc + cd = -ad + bc = -(ad – bc) |M| = -1 |http://nurulfikrisurabaya.co.cc|@nf_sby

60.A = (1/3)B→B = 3A C = (1/2)B→B = 2C 3A = 2C 6A = 4C Jadi penghasilan A selama 6 bulan sama dengan penghasilan C selama 4 bulan |http://nurulfikrisurabaya.co.cc|@nf_sby