• Matéria: Matemática
  • Autor: lukzbrplays
  • Perguntado 6 anos atrás

Alguem ajuda pfvr preciso pra hoje (só as respostas)

d) (-2)² - [ -2³ - √16 . ( 2³ - 10) ] : 171

e) 2 .[10-(3²- 4 . 5) - √9] : 18

f) 10 – [ 3º - (-2)³ - ( 4 – 8 : 2)] - √4

g) [(13 – 3 .4)³ - ( 18 – 4 . 5)³] : 3

h) 100 – {[25 + ( -2 – 1 )³] : 2 + √49} : 3

i) 100 – {[30 – ( 5 + 1)²] : 6 + √81 } : 8

j) 72. [ 4³ - ( √121 + 2 .26)]

k) 42 . [ 4. ( 32 – 4 . √49 ) -1 ] : 63

l) -5 + 2 .3² + 2 . √4

m) -6 + 2 . (-2)³ + 5 . 7º

n) 10 + 2 . 2² - 5 . √49

o) √100 + 3 .(-3)³- 2

Respostas

respondido por: ShinyComet
2

d)      \frac{(-2)^2-[-2^3-\sqrt{16}(2^3-10)]}{171}=

    =\frac{4-[-8-4\times (8-10)]}{171}=

    =\frac{4-[-8-4\times (-2)]}{171}=

    =\frac{4-(-8+8)}{171}=

    =\frac{4-0}{171}=

    =\frac{4}{171}

e)      \frac{2\times [10-(3^2-4\times 5)-\sqrt{9}]}{18}=

    =\frac{2\times [10-(9-20)-3]}{18}=

    =\frac{2\times [10-(-11)-3]}{18}=

    =\frac{2\times (10+11-3)}{18}=

    =\frac{2\times (21-3)}{18}=

    =\frac{2\times 18}{18}=

    =2

f)      10-[3^0-(-2)^3-(4-\frac{8}{2})]-\sqrt{4}=

    =10-[1-(-8)-(4-4)]-2=

    =10-(1+8-0)-2=

    =10-9-2=

    =1-2=

    =-1

g)      \frac{(13-3\times4)^3-(18-4\times5)^3}{3}=

    =\frac{(13-12)^3-(18-20)^3}{3}=

    =\frac{1^3-(-2)^3}{3}=

    =\frac{1-(-8)}{3}=

    =\frac{1+8}{3}=

    =\frac{9}{3}=

    =3

h)      100-\frac{\frac{25+(-2-1)^3}{2}+\sqrt{49}}{3}=

    =100-\frac{\frac{25+(-3)^3}{2}+7}{3}=

    =100-\frac{\frac{25+(-27)}{2}+7}{3}=

    =100-\frac{\frac{25-27}{2}+7}{3}=

    =100-\frac{\frac{-2}{2}+7}{3}=

    =100-\frac{-1+7}{3}=

    =100-\frac{6}{3}=

    =100-2=

    =98

i)      100-\frac{\frac{30-(5+1)^2}{6}+\sqrt{81}}{8}=

    =100-\frac{\frac{30-6^2}{6}+9}{8}=

    =100-\frac{\frac{30-36}{6}+9}{8}=

    =100-\frac{\frac{-6}{6}+9}{8}=

    =100-\frac{-1+9}{8}=

    =100-\frac{8}{8}=

    =100-1=

    =99

j)      72\times[4^3-(\sqrt{121}+2\times26)]=

    =72\times[64-(11+52)]=

    =72\times (64-63)=

    =72\times 1=

    =72

k)      42\times \frac{4\times(32-4\sqrt{49})-1}{63}=

    =42\times \frac{4\times(32-4\times7)-1}{63}=

    =42\times \frac{4\times(32-28)-1}{63}=

    =42\times \frac{4\times4-1}{63}=

    =42\times \frac{16-1}{63}=

    =42\times \frac{15}{63}=

    =\frac{630}{63}=

    =10

l)      -5+2\times3^2+2\sqrt{4}=

    =-5+2\times9+2\times2=

    =-5+18+4=

    =13+4=

    =17

m)      -6+2\times(-2)^3+5\times7^0=

    =-6+2\times(-8)+5\times1=

    =-6+(-16)+5=

    =-6-16+5=

    =-22+5=

    =-17

n)      10+2\times2^2-5\sqrt{49}=

    =10+2\times4-5\times7=

    =10+8-35=

    =18-35=

     =-17

o)      \sqrt{100}+3\times(-3)^3-2=

    =10+3\times(-27)-2=

    =10+(-81)-2=

    =10-81-2=

    =-71-2=

    =-73

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