Matematika

Pertanyaan

Jika w = -3y x = 9 , lalu y = -770 sedangkan z = 17x^2
Maka, tentukanlah 17w - 3x + 2y - 11z
a. -217.996
b. -291.676
c. -219.976
d. -219.796

50 points for 2 people ^^

2 Jawaban

  • 17w - 3x + 2y - 11z
    = 17(-3(-770)) - 3(9) + 2(-770) - 11(17 x 9^2)
    39.270 -27 -1.540 - 15.147
    =22.556
  • w = -3y
    x = 9
    y = -770
    z = 17x²

    17w - 3x + 2y - 11z
    = 17(-3y) - 3(9) + 2y - 11(17 x 9²)
    = -51y + 2y - 27 - (11 x 17 x 81)
    = -49y - 27 - 15.147
    = -49y - 15.174
    = -49(-770) - 15.174
    = 37.730 - 15.174
    = 22.556

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