Question

Resolva as expressões

A) (-3/2) elevado ao quadrado + (-3/2) . (-4/5) =

B) -3 . (3/4 : 5/2 + 8°) - raiz quadrada de 36= pq n achei o bgl

C) Raiz quadrada de 0,81 + 0,3 . 2/3

D) ( 0,5 ) elevado ao cubo - 5,7 . 0,6

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Answer 1

Resposta:

A = 69/20

B = -99/10

C = 11/10

D = -659/200

Explicação passo a passo:

A) $(-\frac{3}{2})^2 + (\frac{3}{2}). (-\frac{4}{5})$

Calculando:

$(-\frac{3}{2}).(-\frac{3}{2}) + (-\frac{3}{2}).(-\frac{4}{5})$

$\frac{9}{4} + \frac{6}{5}$

$\frac{45+24}{20}$

$\frac{69}{20}$

B) $-3.(\frac{3}{4} : \frac{5}{2} + 8^0) - \sqrt{36}$

Calculando:

$-3(\frac{3}4} .\frac{2}{5} + 8^0) - \sqrt{36}$

$-3(\frac{3}{10} +8^0)-\sqrt{36}$

$-3(\frac{13}{10}) -\sqrt{36}$

$(-\frac{39}{10})-\sqrt{36}$

$(-\frac{39}{10})-6$

$\frac{-39-60}{10}$

$-\frac{99}{10}$

C) $\sqrt{0,81} +0,3.\frac{2}{3}$

Calculando:

$\sqrt{\frac{81}{100} }+ (\frac{3}{10}) .(\frac{2}{3})$

$\frac{9}{10} +(\frac{3}{5.2} ).(\frac{2}{3})$

$\frac{9}{10} +\frac{1}{5}$

$\frac{9+2}{10}$

$\frac{11}{10}$

D) $(0,5)^3-5,7.0,6$

Calculando:

$((\frac{5}{2.5}))^3-(\frac{57}{10}).(\frac{3.2}{5.2})$

$((\frac{1}{2})^3-(\frac{57}{10}).(\frac{3}{5})$

$\frac{1}{8} -\frac{171}{50}$

$\frac{25-684}{200}$

$-\frac{659}{200}$