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Sagot :
- w=-9
- x=2.7
- z=-2/5
[tex]\\ \sf\longmapsto \dfrac{w^2x-3}{10z}[/tex]
[tex]\\ \sf\longmapsto \dfrac{(-9)^2(2.7)-3}{10(-2/5)}[/tex]
[tex]\\ \sf\longmapsto \dfrac{81(2.7)-3}{-2(2)}[/tex]
[tex]\\ \sf\longmapsto \dfrac{218.7-3}{-4}[/tex]
[tex]\\ \sf\longmapsto \dfrac{215.7}{-4}[/tex]
- Rounding up numerator
[tex]\\ \sf\longmapsto \dfrac{216}{-4}[/tex]
[tex]\\ \sf\longmapsto -44[/tex]
Step-by-step explanation:
(-9)^2(2.7)-3/10(-2/5
= 81(2.7)-3/-2(2)
= 218.7-3/-4
= 215.7/-4
= -44
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