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MilenaFord
@MilenaFord
September 2021
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помогите пожалуйста (алгебра) 7 класс
3 задания
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andrisd
Verified answer
1) -1.48x+93xy²+34xy²=-1.48x+127xy²
x=5 y=0.1
-1.48*5+127*5*0.01=-6.13
2) 4.52c^4-2.7c^4-1.9c^8=1.82c^4-1.9c^8
3) -10zcz²+c²10zc=-10cz³+10zc³
z=1/10 c=-3
(-10)*(-0.001)*(-3)+10*0.1*(-27)=-0.03-27=-27.03
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Answers & Comments
Verified answer
1) -1.48x+93xy²+34xy²=-1.48x+127xy²x=5 y=0.1
-1.48*5+127*5*0.01=-6.13
2) 4.52c^4-2.7c^4-1.9c^8=1.82c^4-1.9c^8
3) -10zcz²+c²10zc=-10cz³+10zc³
z=1/10 c=-3
(-10)*(-0.001)*(-3)+10*0.1*(-27)=-0.03-27=-27.03