Question

Gente preciso dessas respostas e simplificada pra hoje urgente

Answer 1

01. a) $(-\frac{3}{4} )*(-\frac{2}{9} )*\frac{5}{6}\\\frac{1}{2} *\frac{1}{3} *\frac{5}{6}\\ \frac{5}{36} = 0,138$

b) $(-\frac{2}{3} )* \frac{7}{4} * (-3)*(-\frac{6}{14} ) \\-\frac{1}{2} *\frac{6}{2} \\-\frac{1}{2} *3\\-\frac{3}{2}=1,5$

c) $9,4*1,9*(-2)*(=3,3)\\17,86*2*3,3\\35,72*3,3=117,876$

d) $(-\frac{2}{5} )*0,6*\frac{5}{8}*(-1,4)\\ (-\frac{2}{5} )*\frac{3}{5} *\frac{5}{8} *(-\frac{7}{5} )\\\frac{3}{5} *\frac{1}{4} *\frac{7}{5}\\ \frac{21}{100}= 0,21$

02. a) $(-\frac{2}{3} )*\frac{7}{4} +1+\frac{1}{2}*(-\frac{5}{3} ) \\-\frac{1}{3} *\frac{7}{2} +1+\frac{5}{6} \\-\frac{7}{6} +1+\frac{5}{6} \\\frac{2}{3}=0,6$

b) $(-0,3)*(-2,5)-(-5,1)*1,8-2\\0,75+5,1*1,8-2\\0,75+9,18-2 = 7,93$

c) $2-[(-\frac{2}{5} )*3-(-\frac{1}{4} )*2-\frac{3}{2}]*(\frac{1}{2}-5 ) \\2- (-\frac{6}{5} +\frac{1}{4} *2-\frac{3}{2} )*(-\frac{9}{2} )\\2-(-\frac{6}{5} +\frac{1}{2} -\frac{3}{2} )*(-\frac{9}{2} )\\2-(-\frac{11}{5} )*(-\frac{9}{2} )\\2+\frac{11}{5}*(-\frac{9}{2} ) \\2-\frac{99}{10}\\ -\frac{79}{10}=-7,9$

d) $-0,1[3-(-1,1)*(-2,1)-1]+1,4(3-0,9)\\-0,1[3+1,1*(-2,1)-1]+1,4*2,1\\-0,1(3-2,31-1)+2,94\\-0,1*(-0,31)+2,94\\0,031+2,94=2,971$

e) $-2[0,7-(1,2+1,4*0,3)*(-1,3)]-(-1,5)*2,1\\-2[0,7-(1,2+0,42)*(-1,3)]+1,5*2.1\\-2[0,7-1,62*(-1,3)]+3,15\\-2(0,7+2,106)+3,15\\-2*2,806+3,15\\-5,612+3,15 = -2,462$