0,3-(-1/2)²-2/3×0,75=
3/10-1/4-2/3×3/4=
3/10-1/4-6/12=
18/60-15/60-30/60=
-27/60=-9/20=-0,45
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0,3-(-1/2)²-2/3×0,75=
3/10-1/4-2/3×3/4=
3/10-1/4-6/12=
18/60-15/60-30/60=
-27/60=-9/20=-0,45
0,3 - (-1/2)² - 2/3 × 0,75 =
3/10 - 1/4 - 2/3 × 3/4 =
3/10 - 1/4 - 6/12 =
18/60 - 15/60 - 30/60 =
-27/60 = -9/20 = -0,45
Jawabannya adalah D. 0,45
Maaf kalau salah :-)