Ответ:
[tex]a)(3,5-\frac{1}{4})*2=6,5[/tex]
[tex]1)3,5-\frac{1}{4}=3,5-0,25=3,25[/tex]
[tex]2)3,25*2=6,5[/tex]
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[tex]b) -68,7-0,5+480= -69,2+480=410,8[/tex]
[tex]c)\frac{3^{-7} *3^{10} }{3^{3} } =\frac{3^{-7+10} }{3^{3} } =\frac{3^{3} }{3^{3} } =1[/tex]
[tex]d)(-10)^{2} *0,82+6,7*(-1,3)=73,29[/tex]
[tex]1)(-10)^{2} =100[/tex]
[tex]2)100*0,82=82[/tex]
[tex]3)6,7*(-1,3)= -(6,7*1,3)= -8,71[/tex]
[tex]4)82+(-8,71)=82-8,71=73,29[/tex]
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Answers & Comments
Ответ:
[tex]a)(3,5-\frac{1}{4})*2=6,5[/tex]
[tex]1)3,5-\frac{1}{4}=3,5-0,25=3,25[/tex]
[tex]2)3,25*2=6,5[/tex]
===
[tex]b) -68,7-0,5+480= -69,2+480=410,8[/tex]
===
[tex]c)\frac{3^{-7} *3^{10} }{3^{3} } =\frac{3^{-7+10} }{3^{3} } =\frac{3^{3} }{3^{3} } =1[/tex]
===
[tex]d)(-10)^{2} *0,82+6,7*(-1,3)=73,29[/tex]
[tex]1)(-10)^{2} =100[/tex]
[tex]2)100*0,82=82[/tex]
[tex]3)6,7*(-1,3)= -(6,7*1,3)= -8,71[/tex]
[tex]4)82+(-8,71)=82-8,71=73,29[/tex]