Question

07 - Calcule os valores das expressões: *Demonstrar os Cálculos (valor: 3,0 pontos)
a) 5.( 2 + 3 . 22 ) : ( 10 – 32 ) = b) ( 42 – √25 + 70 – √4 ) = c) 10 + √49 – 5 . 3 + 42 : 7 – 15 =

Answer 1

$\frac{5 * (2 + 3 * 22)}{(10 - 32)} = \frac{5 * (2 + 66)}{(-22)} = -\frac{5 * 68}{(22)} = -\frac{340}{22} = -\frac{170}{11}$

$42 - \sqrt{25} + 70 - \sqrt{4} = 42 - 5 + 70 - 2 = 40 + 65 = 105$

$10 + \sqrt{49} - 5 * 3 + 42 / 7 - 15\\10 + 7 - 15 + 6 - 15 = 17 + 6 - 30 = 23 - 30 = -7$