Question

Помогите плиз. Номер 47 и 48​

Answer 1

47)

$1) 2^8=256\\2) (-5)^2=25\\3) (0,8)^2=0,64\\4) 12^2=144\\5) \bigg(-\dfrac{1}{2}\bigg)^4=\dfrac{1}{16} \\\\6) \bigg(\dfrac{1}{3}\bigg)^3=\dfrac{1}{27} \\\\7) \bigg(2\dfrac{3}{5}\bigg)^2= \bigg(\dfrac{13}{5}\bigg)^2= \dfrac{169}{25} =6\dfrac{19}{25} \\\\8) \bigg(\!-1\dfrac{1}{3}\bigg)^3= \bigg(\!-\dfrac{4}{3}\bigg)^3= \dfrac{16}{9} =1\dfrac{7}{9}$

48)

$1) (-2)^4+3^3=16+9=25\\2) (-9)^2+(-1)^7=81-1=80\\\\3) 5\times\bigg(\!-\dfrac{2}{5}\bigg )^3=5\times\bigg(\!-\dfrac{8}{125}\bigg )=-\dfrac{8}{25} \\4)(-0,4)^3+(-0,2)^3=-0,064-0,008=-0,072\\5) (8^3\div200-0,4^2)\div(-0,5)^2=2,4\div0,25=9,6\\\\6) (2,6-2,2)^3\times\bigg(-1\dfrac{3}{4} \bigg)^2=0,064\times3,0625=0,196$