Question

me ajudem pelo amor de deus tenho q entregar esse trabalho amanhã ​

Answer 1

Resposta:

$a) - 6 + 5 + 12 - 7 = \\ - 6 + 5 + 12 - 7 \\ - 6 - 7 \\ - (6 + 7) \\ - 13 \\ - 6 + 5 +12 - 7 \\ - 13 + 5 + 12 \\ - 6 + 5 + 12 - 5 \\ - 13 + 17 \\ + (17 -13) \\ 4 \\ - 13 + 17 \\ 4 \\ \\ b)( + 10) - ( + 8) - ( -18) + ( - 6) = \\ ( + 10) - ( + 8) - ( - 18) + ( - 6) \\10 - 8 + 18 - 6 \\ ( - 10) - ( + 8) - ( - 18) + ( - 6) \\ 10 - 8 +18 - 6 \\ 28 - 8 - 6 \\ 10 - 8 + 18 - 6 \\ 28 - 14 \\ 14 \\ 10 - 8 + 18 - 6 \\ 14 \\ \\ c)( - 1) + ( - 7) \div ( - 2) = \\ ( - 1) + ( - 7) \div ( - 2) \\ - 1 + ( - 7) \div ( - 2) \\ ( - 1) + ( - 7) \div ( - 2) \\ ( - 7) \div ( - 2) \\ 7 \div 2 \\ 3.5 \\ ( - 1) + ( - 7) \div ( - 2) \\ - 1 +3.5 \\ + (3.5 - 1) \\ 2.5 \\ - 1 + 3.5 \\ 2.5 \\ \\ d)( - 6 {}^{2}) + ( - 3) = \\ ( - 6 {}^{2}) + ( - 3) \\ ( - 6) {}^{2} \\ 6 {}^{2} \\ 6 \times 6 \\ 36 \\ ( - 6) {}^{2} + ( - 3) \\ 36 + ( - 3) \\ ( - 6) {}^{2} +( - 3) \\ 36 - 3 \\ 33 \\ \\ e)( - 2) + ( - 2) \div ( - 2) = \\ ( - 2) + ( - 2) \div ( - 2) \\ - 2 + ( - 2) \div ( - 2) \\ ( - 2) + ( - 2) \div (( - 2) \\ - 2 + 1 \\ - (2 - 1) \\ - 1 \\ - 2 + 1 \\ - 1 \\ \\ f)( - 1) - ( + 6).( + 4) - ( + 3) = \\ ( - 1) - ( + 6) \times ( + 4) - ( + 3) \\ - 1 - + 6 \times + 4 - + 3 \\ ( - 1) - ( + 6) \times ( + 4) - ( + 3) \\ + 6 \times 4 \\ ( + 6 \times 4) \\ - 24 \\ ( - 1) - ( + 6 \times 4 - 3) \\ - 1 - 24 - 3 \\ - (1 + 24 + 3) \\ - (25 + 3) \\ - 28 \\ - 1 - 24 - 3 \\ - 28 \\ \\ g) - 5.(4 - 12 \div 2) = \\ - 5 \times (4 - 12 \div 2) \\ - 12 \div 2 \\ - (12 \div 2) \\ - 6 \\ - 5(4 - 12 \div 2) \\ - 5(4 - 6) \\ 4 - 6 \\ - (6 - 4) \\ - 2 \\ - 5(4 - 6) \\ - 5 \times ( - 2) \\ 5 \times 2 \\ 10 \\ - 5 \times ( - 2) \\ 10 \\ \\ h)( - 4) {}^{2} + \sqrt{9}.( - 2) = \\ ( - 4) {}^{2} + \sqrt{9} \times ( - 2) \\ ( - 4) {}^{2} \\ 4 {}^{2} \\ 4 \times 4 \\ 16 \\ ( - 4) {}^{2} + \sqrt{9} \times ( - 2) \\ 16 + \sqrt{9} \times ( - 2) \\ ( - 4) {}^{2} + \sqrt{9} \times ( - 2) \\ \sqrt{9} \\ \sqrt{3 {}^{2} } \\ 3 \\ ( - 4) {}^{2} + \sqrt{9} \times ( - 2) \\ 16 + 3 \times ( - 2) \\ 3 \times ( - 2) \\ - (3 \times 2) \\ - 6 \\ 16 + 3 \times ( - 2) \\ 16 - 6 \\ 10 \\ \\ respostas \\ a)4 \\ b)14 \\ c)2.5 \\ d)33 \\ e) - 1 \\ f) - 28 \\ g)10 \\ h)10$