Question

Please bantui soal no 6 sangat butuh jalannya! #makasihsebelumnya

Answer 1

1.) A₁ = 8 × 2 = 16
X₁ = 1

2.) A₂ = 4 × 2 = 8
X₂ = 2 + ( ¹/₂ × 2) = 4

3.) A₃ = 8 × 2 = 16
X₃ = 8 + ( ¹/₂ × 2) = 9

x = [A₁X₁ + A₂X₂ + A₃X₃]/ [A₁ + A₂ + A₃]
= [16.1 + 8.4 + 16.9]/ [16+ 8 + 16]
= [16 + 32 + 144]/ 40
x = 4,8

maka letak titik berat nya adalah (4,3)

Jawaban: D