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AnastasiaDanchenko
@AnastasiaDanchenko
July 2022
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Помогите пожалуйста.
а)75:5²
б)(-2)²×15
(3,7-1,2*4,5):0,17+30
5,7*(-3)+(-7)*(-0,5)-1,9*(-9)
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Answers & Comments
QuasarDreemov
А) 75:5^2 = 75:25=3.
б) (-2)^2•15=4•15=60.
в) (3,7-1,2•4,5):0,17+30=(3,7-5,4):0,17+30=-1,7:0,17+30=-10+30=20.
г) 5,7•(-3)+(-7)•(-0,5)-1,9•(-9)=-17,1+3,5+17,1 = 3,5.
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AnastasiaDanchenko
Большое спасибо)
QuasarDreemov
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Answers & Comments
б) (-2)^2•15=4•15=60.
в) (3,7-1,2•4,5):0,17+30=(3,7-5,4):0,17+30=-1,7:0,17+30=-10+30=20.
г) 5,7•(-3)+(-7)•(-0,5)-1,9•(-9)=-17,1+3,5+17,1 = 3,5.