Question

Questão 56) Calcule as seguintes contas:

Answer 1

a)3²-23+(1/2)° = 9-23+1 = 10-23= -13

b)4.2³-(3/2).(-2)¹ = 4.8 -(3/2) .(-2) = 32- (-6/2)= 32-(-3)=32+3=35

c) 5.1/9+1/3-3.1 = 5/9+ 1/3 -3/1 =  5+3-27/9 = -19/9

d) 8-2.9= 8-18=-10

e)(-1 )10=1+3.(-1)- (3).1 = 1+(-3)-(3)= 1+(-6)=-5

f)(+5) - (-5) = 625-625 =0

Answer 2

$a)~~3^2-23+ \left( \dfrac{1}{2} \right)^0\to~~ 9-23+1\to~~ 10-23\to~~\boxed{-13}\\\\\\\\\\ b)~~4\times2^3 - \left( \dfrac{3}{2} \right)\times (-2)^1\to~~ 4\times8-\left( \dfrac{3}{2} \right)\times (-2)\to~~ 32+ \dfrac{6}{2} \to\\\\32+3\to~~\boxed{35}$





$c)~~5^1\times3^{-2}+3^{-1}-3\times3^0\to~~ 5\times \left( \dfrac{1}{3} \right)^2+\left( \dfrac{1}{3} \right)^1-3\times1\to\\\\\\ 5\times \left( \dfrac{1}{9} \right)+\left( \dfrac{1}{3} \right)-3\to~~\left( \dfrac{5}{9} \right)+\left( \dfrac{1}{3} \right)-3\to~~ \dfrac{5+3-27}{9} \to\\\\\\ \boxed{- \frac{19}{9} }$





$d)~~2^3-2\times3^2\to~~8-2\times9\to~~ 8-18\to~~\boxed{-10}\\\\\\\\\\ e)~~(-1)^{10}+3\times(-1)^5-3\times(-1)^6\to~~ 1+3\times(-1)-3\times1\to\\\\ 1-3-3\to~~1-6\to~~\boxed{-5}\\\\\\\\\\ f)~~(+5)^4-(-5)^4\to~~625-625\to~~ \boxed{0}$