Question

Pomocy na jutro Błagam​

Answer 1

Verified answer

Odpowiedź:

a) -1,8•⅔-0,8•(-¾)² -¹⁸/10•⅔- ⁸/10•⁹/16

----------------------- = ------------------------------ =

-0,9•⁵/9+(-½) -⁹/10•⁵/9-½

-1⅕- ⁹/20 -1 ⁴/20 -⁹/20

-------------- = -------------------- = -1 ¹³/20 :(-1)= 1 ¹³/20

-½-½ -1

b) -2•(-0,5)²+(-2) -2•0,25-2 -0,5-2 -2,5

---------------------- = ----------------- = ------------ = ------- =

-0,1•[-1,3+6•(-0,2)] -0,1•[-1,3-1,2] -0,1•[-2,5] 0,25

-2,5: 0,25= -⁵/2 : ¼= -⁵/2•4= -²⁰/2= -10

Answer 2

Odpowiedź:

a)

[tex]\frac{-1,8*\frac{2}{3}-0,8*(-\frac{3}{4})^2}{-0,9*\frac{5}{9}+(-\frac{1}{2})} =\frac{-\frac{18}{10}*\frac{2}{3}-\frac{8}{10}*\frac{9}{16} }{-\frac{9}{10}*\frac{5}{9}-\frac{1}{2} } =\frac{-\frac{6}{5}-\frac{9}{20} }{-\frac{1}{2}+(-\frac{1}{2}) } =\frac{-\frac{24}{20}+(-\frac{9}{20} ) }{-1}) }=\frac{33}{20}=1\frac{13}{20}[/tex]

b)

[tex]\frac{-2*(-0,5)^2+(-2)}{-0,1*(-1,3+6*(-0,2))} =\frac{-2*0,25+(-2)}{-0,1*(-1,3+(-1,2))}=\frac{-0,5+(-2)}{-0,1*(-2,5)} =\frac{-2,5}{0,25} =-10[/tex]

Szczegółowe wyjaśnienie: